As in every other case, however, there is all the difference in the world between the use of anything and its abuse. It is wrong to a.s.sume that, because a great deal of something is injurious, a small quant.i.ty judiciously employed is equally pernicious. And so it is even in the case of tea, for it is not to be denied that a fragrant cup of tea is very agreeable. As Dr. Vivian Poore most appropriately remarked in reply to the argument that the lower animals did not require tea, coffee, &c.: "We are not lower animals; we have minds as well as bodies; and since these substances have the property of enabling us to bear our worries and fatigues, let us accept them, make rational use of them, and be thankful." Of course everything hinges upon the correct interpretation of the terms "small" quant.i.ty, and "judiciously"
employed. It may be said, however, that the drinking of large cups of tea is never to be sanctioned under ally circ.u.mstances whatever. It should rather be looked upon as a delicate fluid to be imbibed only in very small quant.i.ties. It should certainly not be used in the middle of the day, between those hours which I have specified; nor should it be taken during the evening, for it almost always disturbs the night"s rest.
There was a great controversy as to the proper way of making tea in the medical papers not very long ago. It is of course a perennial topic, and always excites considerable interest. This particular discussion began in this way. A new tea-pot, called the anti-tannic tea-pot, appeared on the scene, and was favoured with a long description by the BRITISH MEDICAL JOURNAL. It was claimed for this special model that it extracted only the theine, and not the tannin from the tea. Now, as a matter of fact, it is simply impossible to make tea, no matter how it is made, entirely free from tannin. It is quite true that many suppose by infusing the tea for a very brief period only--two or three minutes --the pa.s.sage of the tannin into the beverage can be prevented, but, as Sir William Roberts has pointed out, this is quite a delusion. Tannin is one of the most soluble substances known, and melts in hot water just as sugar does. Tea made experimentally, by pouring boiling water on the dry leaves placed on filter paper, contains tannin. As Sir William remarks, you can no more have tea without tannin, than you can have wine without alcohol.
Nevertheless, it is a fact that this anti-tannic tea-pot has many excellent points about it, and is sure to meet with favour. It is really an attempt to make tea by a more certain method than is generally employed; for I think it must be admitted that the present happy-go-lucky style has not much to recommend it. On one occasion the tea will be excellent--and on another either as weak as water, or with such a sharp acrid taste that it is almost undrinkable. In the latter case the tea has been allowed to soak so long that it has become a decoction instead of an infusion. The consequence of this prolonged action of the hot water on the tea is that it brings out the bitter extractive material of the plant, and it is this which proves so particularly pernicious. Tea at sea is proverbially unpalatable, and invariably disagrees, owing chiefly to the fact that it is a boiled decoction of tea leaves and nothing else.
COFFEE
Coffee is the roasted and ground product of the seeds found within the fruit of a tree, the Coffea Arabica. Originally a native of Abyssinia, it was transported into Arabia at the beginning of the fifteenth century. Since then it has been widely cultivated in the West Indies, in Ceylon, and in other warm countries. The fruit itself much resembles a small cherry in size and appearance, and usually contains two small seeds--the coffee beans themselves. The choicest coffee is the mocha or Arabian coffee, and the bean is very small. Of the West Indian varieties, the Jamaica and the Martinique coffee are the best. The exhilarating and agreeable properties of coffee are dependent in great part upon three active principles which it contains. The first of these is caffeine, which is almost identical in composition with, and practically the same as, the theine present in tea. Next there are the volatile oils, developed by roasting, from which coffee derives its aroma. Indeed, as far as they are concerned, there are many who believe that these ethereal oils have more to do with the characteristic properties of coffee than even the caffeine itself. And, lastly, there are the acids known as caffeo-tannic and caffeic acids, which are modified forms of tea tannin. They exist to a far less extent, however, than does the tannin in tea.
Coffee has a decidedly stimulating effect upon the nervous system; so much so that in France it has been called UNE BOISSON INTELLECTUELLE (an intellectual beverage), from its stimulating all the functions of the brain. Not so long ago a writer, Dr. J. N. Lane, in the BRITISH MEDICAL JOURNAL gave some interesting, information with respect to coffee and brain work. As the result of his own experience he recommended "a cup of strong coffee, without cream or sugar, preceded and followed by a gla.s.s of hot water every morning before breakfast.
The various secretions are thus stimulated, the nerve force aroused, no matter how the duties of the preceding day and night may have drawn upon the system. Another cup at four in the afternoon is sufficient to sustain the energies for many hours." It is only fair to add, however, that the JOURNAL went on to remark that in this way some 50 grains of caffeine would be taken each week, and that very little more might develop injurious symptoms, so that the power of doing an illimitable amount of work would be obtained under somewhat risky conditions.
One of its most remarkable effects is that of relieving the feeling of fatigue or exhaustion, whether this be produced by brain work or bodily labour. It enables the system also to bear up under an empty stomach and when the supply of food is shortened. In this way it is of signal value to the soldier in the field. Professor E.A. Parkes, all admitted authority on these matters, bears testimony to the fact that in military service it invigorates the system and is almost equally useful against both cold and heat--against cold by reason of its warmth, and against heat by its action on the skin. It appears, also, to do sway with the need for sleep, probably from its arousing the mental faculties, and the effect of a strong cup of coffee in inducing wakefulness is well known. Coffee has, moreover, a distinct action on the heart, and tends to strengthen it. The Germans are great believers in its virtues, and Vogel, one of the princ.i.p.al authorities on diseases of children, recommends it for them, mixed with cream, both as a food and as a tonic.
In addition to the foregoing, coffee is also employed by reason of its important medicinal virtues. In malarious countries a cup of hot strong coffee, in the early morning, is regarded as a preventive against fever and ague. It is a valuable agent in many cases of heart disease, particularly when a.s.sociated with dropsy. In Bright"s disease of the kidneys, where dropsy is present, it is likewise given with benefit.
Strong coffee is also a well-known remedy in asthma, both in relieving the actual attack and in acting as a restorative after it is over. It frequently gives great relief in many forms of nervous headache, particularly in that variety known as migraine, in which the pain is generally limited to one side of the head. And, lastly, coffee is a valuable remedy in opium poisoning, where there is such a tendency to a fatal coma.
From the foregoing it must be evident that coffee occupies a very high position as a beverage. All that concerns its preparation, therefore, is of undoubted interest. In the first place, to obtain coffee in perfection it is indispensable that the beans be roasted at home, and not only should the roasting be done in the house, but the operation ought really to be performed immediately before the coffee is made, and the reasons thereof I shall give in speaking of the process of roasting. Many people do not care sufficiently about the perfection of coffee to go to this trouble, and are content with having their roasted coffee beans sent to them daily from their grocer. The leading establishments roast their coffee beans daily, and from them the latter may be obtained and ground in the mill at home. This, of course, though not giving the real thing, is an immense improvement on the hallowed tradition, so dear to some, of purchasing their weekly supply of,,round coffee at a time and keeping it in a tin or vessel for use as required. But, as I said before, if perfection is aimed at, the roasting must be done at home.
In the selection of the green beans care should be taxiway to see that they are nearly all of the same size, for if some are small and others large, when it comes to roasting it will be found that the small ones are done to a cinder, while the larger beans are hardly touched. The beans, too, should be perfectly dry; if moist, they should be dried in a dish by the fire or in the oven before going into the roaster. On the coffee plantations the drying of the bean is considered a most important matter when preparing them for export.
In the process of roasting, a volatile oil which gives to coffee its unique fragrance is developed. It is somewhat curious that no amount of boiling could educe this from the raw bean. This oil is exceedingly volatile, and begins to disperse and evaporate the very moment it is born. Hence, to obtain the perfection of coffee, no time should be lost in grinding and making it directly it is roasted. When the fragrant vapour of the roasted bean is first given off, it is soon followed by a peculiar noise, caused by the splitting and crackling of the external silvery greenish covering of the raw beans. At this time, or very shortly afterwards, the latter are of a yellowish hue, but before long they change into that desirable lightish brown colour, when the peculiar volatile coffee oils are at their best.
The best mill for grinding the coffee, and one which may be obtained from any ironmonger, is that which can be screwed on the edge of the kitchen table or dresser. It has a little contrivance to regulate the size of the grains. and care must be taken not to grind the coffee too fine; it should be in minute crumbs rather than in powder.
As I have already said, the perfection of coffee is only to be obtained under three conditions. These are, first, that the beans should be roasted at home; that they should be ground without much delay; and, thirdly, made into coffee as soon as possible. Many people are, however, unable to carry out the first of these three requirements. The next best subst.i.tute is to have the roasted coffee beans sent daily to them by their grocer. This is a practice which might be followed more frequently with a great deal of advantage, for all are able, at least, to possess a mill and grind their own coffee at home.
The making of the coffee is quite as important as the preceding, and the number of different models of coffee-makers is almost perplexing.
But of them all, the one which is simplest, and perhaps most effective, is the ordinary CAFETIERS, or French coffee-pot. This has the advantage of costing only a few shillings, and is readily obtainable from any ironmonger. It consists of an upper compartment in which the coffee is made, and a lower part--the coffee-pot itself--into which the coffee descends. These two portions are quite separate, although the upper fits on the lower. The floor--on which the coffee is placed--of the upper part is perforated by a number of minute holes There is also a movable strainer about an inch in depth, which fits on top of the upper part; and a presser, consisting of a long rod with a circular plate at its end, which for convenience pa.s.ses through the centre of the strainer, and rests on the perforated floor of the upper part.
There are one or two points to be borne in mind in the making of coffee. As a rule English-speaking people do not allow enough coffee to each cup. The almost universal fault of coffee, made elsewhere than on the Continent, is its want of strength and flavour. With regard to the admixture of chicory, this is largely a question of taste, and the palate must be consulted in the matter. The great majority of people, however, cannot do without it, and it is quite (when genuine) a harmless addition. Madame Lebour-Fawssett recommends the following proportions: For making CAFE NOIR, or coffee after meals, there should be six teaspoonsful of coffee, heaped up, and a very small teaspoonful of chicory, or none at all, for one pint of water. The chicory must be left out altogether, and another teaspoonful of coffee subst.i.tuted for those who object to chicory with their CAFE NOIR. For morning coffee or cafe au lait there should be ten or twelve teaspoonsful of coffee, with a sixth part of chicory, for each pint of water. As Madame Lebour-Fawssett remarks, CAFE AU LAIT is never complete without chicory, but care should be taken not to overdo it, since too much chicory renders the coffee quite undrinkable. Of course, if you do not require as much as a pint of coffee, the quant.i.ties may be reduced, still observing the same proportions. Before pouring out the coffee, the cup should first be half filled with hot milk, and then the coffee added.
Now, having seen what proportions of coffee and chicory are to be employed for CAFE NOIR and CAFE AU LAIT respectively, it will be better to describe the actual making of the coffee, since the CAFETIERE will then be more easily understood. We will suppose its upper part is fitted into its place on the top of the lower portion, and that the strainer and presser have been removed for the time being. Enough boiling water should first of all be poured in to fill both the upper and lower compartments, allowed to stand for a couple of minutes, and then poured away. This brings everything to a proper heat for receiving the coffee.
Next put the amount of coffee necessary upon the perforated floor of the upper part. The coffee should then be well pressed down with the presser, and the latter instrument next laid aside. After this the strainer should be replaced on top of the upper compartment, and the required amount of boiling water, a little at a time, poured in through it (the strainer). The object of pouring in the boiling water slowly is to give it time to percolate through the densely pressed coffee lying on the floor of the upper part. There is a little tin cover fitting over the spout of the lower compartment, which should be adjusted to keep in the steam. The whole may then be set aside for a few minutes, and when the coffee has pa.s.sed into the lower part, it is ready for use. With a little practice, and by paying attention to these details, the most perfect coffee may be made.
ICED DRINKS
In Australia some reference to the subject of iced drinks is necessarily required, for they are in great request during the hot season. There is a considerable amount of diversity of opinion as to their good and bad effects, but it will be found that the experience of most medical men is that when used in moderation they greatly relieve thirst and are not injurious. This, indeed, is my own belief, and were it not for the abuse of iced drinks, the same opinion would be held almost universally. America is the country of countries in which the inordinate use of ice has gained for it a reputation which it has never deserved. Ice, says George Augustus Sala, is the alpha and omega of social life in the United States. At the hotels, first-cla.s.s or otherwise, the beverage partaken of at dinner is mostly iced water.
Every repast, in fact, begins and ends with a gla.s.s of iced water. When consumed in this way it is no wonder that it often disagrees, and that ice-water dyspepsia is a definite malady in America. And more than this, imagine carrying the employment of ice to such an extent that it culminates in that gastronomical curiosity, a BAKED ICE! The "Alaska" is a BAKED ICE, of which the interior is an ice cream. This latter is surrounded by an exterior of whipped cream, made warm by means of a Salamander. The transition from the hot outside envelope to the frozen inside is painfully sudden, and not likely to be attended with beneficial effect. But the abuse of a good thing is no argument whatever against its use in a moderate and rational manner.
It will be desirable, however, to see what is believed in India about iced drinks, for it will be something of a guide for us in Australia.
There are two authorities in particular who have been already referred to, and who have written on this matter in its application to India.
The first of these is Sir James Ra.n.a.ld Martin, who had twenty-two years experience there in different parts, and is therefore ent.i.tled to be listened to. He says that ice is a matter of necessity in the East, and quotes Dolomieu, who observes of iced drinks that "they revive the spirits, strengthen the body, and a.s.sist the digestion."
There is also that other great name, that of Sir Joseph Fayrer, who is most competent to speak on Indian matters. In setting forth rules for the guidance of those who purpose living in India, he remarks that iced water may be drunk with impunity there; that he has no recollection of seeing any one suffer from drinking iced water or iced soda water in a hot climate; and that in the great heat it is good, since it tends to keep down the body temperature. When the system is prostrated by the sun or extreme heat, or exhausted by physical or intellectual exertion in a hot and damp atmosphere, he believes that a gla.s.s of iced water slowly swallowed is far more refreshing than the iced brandy, or whisky peg, or draught of beer, too frequently indulged in under such circ.u.mstances.
The different writers on food and dietetics, who have given considerable attention to the same subject, are almost unanimous in their opinion to the same effect. There will be no occasion to refer to all of them, but three at least deserve a brief mention. Dr. Burney Yeo has recently observed that iced water, when taken in small quant.i.ties, is refreshing and cooling, and likewise stimulates the digestive functions. On the other hand, it is certainly injurious when taken in inordinate amount. According to Dr. T. King Chambers, cool drinks are beneficial to the stomach in hot weather, since they help to reduce the increased temperature to which the over-heated blood has brought it.
Ice, moreover, is a valuable addition to the dietary both of the sick and of the healthy. There is one caution to be observed, however, and it is that ice is injurious when the system is exhausted after violent exercise. And lastly, Dr. Milner Fothergill believes the craving for cool drinks during the hot weather is such, that there is evidently some irrepressible desire to be satisfied. He even writes that in his opinion the dyspepsia of Americans is not entirely due to the free use of iced water, but that there are other causes which help to bring it about.
But while all this is greatly in favour of the moderate use of iced drinks, the purity of the source from which the ice is obtained is also a matter of the highest importance. Ice is not ice when the water from which it is derived is impure. There was an outbreak of sickness amongst the visitors at one of the large hotels at Rye Beach, a watering-place in America, one summer. The symptoms were an alarming disturbance of the with severe pain, great feverishness, and depression of spirits. It was found that the ice which occasioned this outbreak had been taken from a stagnant pond containing a large amount of decomposing matter. A portion of it was carefully melted, and was found to contain a considerable quant.i.ty of decaying vegetable matter.
In the case of artificial ice, the question of purity is even more important. The reason for this is that the water used in the manufacture of artificial ice is usually frozen solid, and whatever substances, consequently, are dissolved in the water remain in the ice itself.
TOBACCO
Five out of every six male adults smoke, whether it be cigarette, cigar, or pipe. That is, in a gathering of, say, 600 men, 500 will be smokers and 100 non-smokers. At least, this is the estimated proportion in the old country. In Australia the ratio is about the same, but the average amount of tobacco used by every smoker is greater. According to Mr. T. A. Coghlan in his WEALTH AND PROGRESS OF NEW SOUTH WALES, the annual consumption of tobacco in Australia for each inhabitant is 3 lbs. all but a fraction. For the United Kingdom the corresponding amount is 1.41 lbs.; and for the United States of America, 4.40 lbs.
Italy, it would seem, consumes in the same way 1.34 lbs.; France, 2.05 lbs.; Germany, 3 lbs.; Austria, 3.77 lbs.; Turkey, 4.37 lbs.; while Holland reaches the excessive amount of 6.92 lbs. Of the five colonies of Australia, namely, New South Wales, Victoria, South Australia, Queensland, and West Australia, the use of tobacco is greatest in the latter two; the figures for Queensland being 3.53 lbs., and for West Australia 4.11 lbs.
With regard to the effect of tobacco on the human system, it will perhaps be most convenient to make a division into the following three cla.s.ses. In the first place there are a certain number of people upon whom tobacco in any shape or form has an absolutely poisonous influence. There must be some peculiar susceptibility of the system in their case which renders them especially vulnerable to its action. On this account, therefore, they are better without tobacco at all, and any attempt to habituate themselves to it must be attended with prejudice to health. Secondly, there are many other people who can only use tobacco in its very mildest forms. They may be able to smoke a few cigarettes daily, perhaps only three or four; if they indulge in a cigar, it must be one of the mildest; if a pipe, the tobacco will have to be the very lightest. Anything exceeding their allowance is an excess for which they are obliged to pay the penalty. Then, again, there is a third cla.s.s who can enjoy tobacco in moderation. But these are the very people who are most apt to abuse their privilege. And although they do not recognise it at once, the effect of their excessive smoking is bound to a.s.sert itself at last, and compel them to curtail their allowance. If those in the second category, who can enjoy the mildest tobacco in the smallest quant.i.ties, and those in the third, who can smoke in moderation, were never to exceed their proper amount, no very great harm would follow. But it most frequently happens that both overstep their respective bounds, and the result is injury to health.
The tobacco plant, NICOTIANA TOBAc.u.m, belongs to the order Solanaceae, which also includes belladonna, capsic.u.m, henbane, and likewise the common potato. Its active principle, an alkaloid--nicotine or nicotia --is combined with a vegetable acid. Some of the alkaloids, such as morphine, strychnine, &c., are crystalline in character, but this, along with a few others, is liquid. A single drop of it is fatal to the smaller animals, a cat or Even as it is, the first smoke usually produces characteristic results. There is generally pallor of the face, nausea, and vomiting. Usually a cold, clammy sweat breaks out, and the heart seems as if it were about to stop. The system, however, gradually becomes habituated to its action, and these symptoms do not reappear.
Seeing that this somewhat unpleasant apprenticeship is uncomplainingly served, it is evident that in smoking there must be some powerful attraction. There are many, indeed, who persist in it when it is doing them an inconceivable amount of injury.
It is a fortunate thing that almost all of the nicotine pa.s.ses off, or is burnt up, or else the effect would be more markedly disastrous. But the pleasurable effects of tobacco are derived in great part from the volatile alkaloids formed during combustion. The alkaloids which develop during the smoking of a pipe are entirely different from those of a cigar. In a pipe, according to Vold and Eulenburg, the tobacco yields a very much larger proportion of volatile bases, especially of the very volatile and stupefying pyridine. On the other hand, a cigar produces but little pyridine, but more of the less active collidine. It is well known that very much stronger tobacco can be smoked as a cigar than as a pipe. As a matter of fact a cigar which could be enjoyed as a cigar, would cause sickness if cut up into small pieces and smoked in a pipe. This pyridine to which reference has just been made has lately been brought forward as a remedy for asthma. Now, the effect of tobacco in cutting short an attack of this latter malady is, at times, very marked. And Professor See, the eminent French physician, believes that the pyridine is the relieving agent.
In the earlier part of this section I have attempted to form a provisional cla.s.sification of people as far as the effect of tobacco is concerned. Firstly, those upon whom tobacco in any shape or form is an absolute poison; secondly, those who can enjoy a very small amount-daily; and thirdly, those who are able to smoke in moderation.
Now, while those who use tobacco with wise discretion appear to be none the worse for it, yet it unfortunately happens that far too frequently there is no limit to this discretion. It is too often the case, therefore, that quite a serious amount of damage to health results from excessive smoking. It requires a good deal of judgment, and even more resolution, to use and not abuse tobacco.
There are certain symptoms which should lead a man either to curtail his allowance, or else give up tobacco altogether. These are marked nervousness, trembling of the whole body, unsteadiness of the hands, and twitching of different muscles. There may be also swimming of the head, severe headache, and a feeling of despondency. In other cases there may be irritability of temper, a want of will determination, and progressive loss of memory. The special senses--sight, hearing, taste, smell, and touch--may all be blunted. The Bight and hearing are often markedly affected. Colour blindness is sometimes a result, and there may be that impairment of vision known tobacco AMBLYOPIA. As regards the hearing, too, there is not unfrequently a drumming in the ears and confusion of sounds.
And more than this, tobacco, when unsuitable or used in excess, has other prejudicial effects. Its action on the heart is well known, and is frequently manifested by violent palpitation and by disturbed action of the heart. There is also a definite disorder known as "the smoker"s heart." In this affection the beats, instead of being regular, are very rapid, suddenly becoming very slow. In this way the rhythm of the heart has been aptly compared by Dr. Lauder Brunton to a restive horse, who goes into a gallop for a few yards, next pulls up all at once, and then breaks off into a gallop again. When tobacco has these prejudicial effects upon the heart, it is no good diminishing the allowance. The only way to bring about any good result is to knock it off altogether.
In addition to its direct action on the heart, tobacco smoking may also bring on a sudden fainting, in which there is absolutely no warning.
This condition may develop from the tobacco alone, but in many instances nervous excitement or shock are superadded. Professor Fraser, of Edinburgh, has observed that quite a number of his college friends, who smoked to an inordinate extent as students, were obliged to give up tobacco as middle age approached. Several of them had to do so on account of the onset of these sudden fainting fits. Many smokers also suffer from what is termed chronic pharyngitis. In this affection the mucous membrane at the back part of the mouth looks like dirty-red velvet, and there is also a constant hawking of phlegm. And further, indigestion itself is in many eases entirely due to excessive smoking, from which there is no relief except by abandoning the habit altogether.
But even when tobacco does not produce such marked ill effects, it is as well to remember that it has always a definite action from a gastronomic point of view. And it is this, that directly after the first draw of a cigarette, cigar, or pipe, the palate loses its delicacy of perception. As Sir Henry Thompson remarks, after smoke the power to appreciate good wine is lost, and no judicious host cares to open a fresh bottle from his best bin for the smoker. This is perfectly true; under such circ.u.mstances valuable wine would simply be thrown away. But, on the other hand, there is an unquestionable sympathy between coffee and tobacco, and a cup of Mocha blends harmoniously with choice Latakia. This is well recognised in the East; and throughout the Continent coffee and temperate habits go hand in hand with the cigar or cigarette. We must also agree with Sir Henry when he declares that smoke and alcoholic drinks are only found a.s.sociated together in Great Britain and other northern nations, where there are to be found the most insensitive palates in Europe. It is a good thing, therefore, that the habits followed here are unknown to him, or else Australia would certainly have had a rap over the knuckles.
CHAPTER VII.
EXERCISE
This comes last alphabetically of the five essentials concerned in the maintenance of health--namely, ablution: the skin and the bath; bed-room ventilation; clothing; diet; and exercise--but it is none the less important on that account. Exercise may be defined as action of the body, whereby its organs and their functions are kept in a state of health. Each one of us has from the moment of his existence a certain stature allotted, as it were, to which he will attain. In this way some will be tall, others will be short, so that the height of the body is something quite beyond our control, as we know by the interrogation, "Which of you by taking thought can add one cubit to his stature?" But in contradistinction to height, we know that the muscles of the body can be developed and increased in size by use. It is by their action in exercise that the muscles are enlarged, hardened, and brought to their greatest state of perfection. And it is only by exercise, and by exercise alone, that they can be maintained at the acme of physical condition.
Now, in the same way that education develops and increases the power of the brain, so exercise has a similar effect on the body. When the muscles are strengthened, the beneficial effect is also partic.i.p.ated in by the heart, lungs, and digestive organs, and thus the removal of worn-out material from the body is a.s.sisted. The effect of exercise is thus to remove used up products from the system, and so afford an opportunity for renewed material to take their place. Ceaseless changes are constantly going on throughout the body, and any part which has fulfilled its object is no longer necessary for the requirements of the system, in fact it becomes injurious. Its removal has to take place by one of the various outlets, and it is by exercise that its expulsion is greatly a.s.sisted. In this way exercise differs altogether from the part played by food. The latter is the introduction of nourishment into the system for the renewal of its wants, while exercise is the princ.i.p.al agent by which DEBRIS is eliminated.