First dissolve the bruised camphor in the acetic acid, then add the perfumes; after remaining together for a few days, with occasional agitation, it is to be strained, and is then ready for use.
Several forms for the preparation of this substance have been published, almost all of which, however, appear to complicate and mystify a process that is all simplicity.
The most popular article of this kind is--
HENRY"S VINEGAR.
Dried leaves of rosemary, rue, wormwood, sage, mint, and lavender flowers, each, 1/2 oz.
Bruised nutmeg, cloves, angelica root, and camphor, each, 1/4 oz.
Alcohol (rectified), 4 oz.
Concentrated acetic acid, 16 oz.
Macerate the materials for a day in the spirit; then add the acid, and digest for a week longer, at a temperature of about 14 C. or 15 C.
Finally, press out the new aromatized acid, and filter it.
As this mixture must not go into the ordinary metallic tincture press, for the obvious reason of the chemical action that would ensue, it is best to drain as much of the liquor away as we can, by means of a common funnel, and then to save the residue from the interstices of the herbs, by tying them up in a linen cloth, and subjecting them to pressure by means of an ordinary lemon-squeezer, or similar device.
VINAIGRE A LA ROSE.
Concentrated acetic acid, 1 oz.
Otto of roses, 1/2 drachm.
Well shaken together.
It is obvious that vinegars differently perfumed may be made in a similar manner to the above, by using other ottos in place of the otto of roses. All these concentrated vinegars are used in the same way as perfumed ammonia, that is, by pouring three or four drachms into an ornamental "smelling" bottle, previously filled with crystals of sulphate of potash, which forms the "sel de vinaigre" of the shops; or upon sponge into little silver boxes, called vinaigrettes, from their French origin. The use of these vinegars had their origin in the presumption of keeping those who carried them from the effects of infectious disease, doubtless springing out of the story of the "four thieves" vinegar," which is thus rendered in Lewis"s Dispensatory:
"It is said that during the plague at Ma.r.s.eilles, four persons, by the use of this preservative, attended, unhurt, mult.i.tudes of those that were affected; that under the color of these services, they robbed both the sick and the dead; and that being afterwards apprehended, one of them saved himself from the gallows by disclosing the composition of the prophylactic (a very likely story!!), which was as follows:--
VINAIGRE DES QUATRE VOLEURS, OR FOUR THIEVES" VINEGAR.
Take fresh tops of common wormwood, Roman wormwood, rosemary, sage, mint, and rue, of each, 3/4 oz.
Lavender flowers, 1 oz.
Garlic, calamus aromaticus, cinnamon, cloves, and nutmeg, each, 1 drachm.
Camphor, 1/2 oz.
Alcohol or brandy, 1 oz.
Strong vinegar, 4 pints.
Digest all the materials, except the camphor and spirit, in a closely covered vessel for a fortnight, at a summer heat; then express and filter the vinaigre produced, and add the camphor previously dissolved in the brandy or spirit."
A very similar and quite as effective a preparation may be made by dissolving the odorous principle of the plants indicated in a mixture of alcohol and acetic acid. Such preparations, however, are more within the province of the druggist than perfumer. There are, however, several preparations of vinegar which are sold to some extent for mixing with the water for lavatory purposes and the bath, their vendors endeavoring to place them in compet.i.tion with Eau de Cologne, but with little avail. Among them may be enumerated--
HYGIENIC OR PREVENTIVE VINEGAR.
Brandy, 1 pint.
Otto of cloves, 1 drachm.
" lavender, 1 "
" marjoram, 1/2 drachm.
Gum benzoin, 1 oz.
Macerate these together for a few hours, then add--
Brown vinegar, 2 pints.
and strain or filter, if requisite, to be bright.
TOILET VINEGAR (_a la Violette_).
Extract of ca.s.sie, 1/2 pint.
" orris, 1/4 "
Esprit de rose, triple, 1/4 "
White wine vinegar, 2 pints.
TOILET VINEGAR (_a la Rose_).
Dried rose-leaves, 4 oz.
Esprit de rose, triple, 1/2 pint.
White wine vinegar, 2 pints.
Macerate in a close vessel for a fortnight, then filter and bottle for sale.
VINAIGRE DE COLOGNE.
To eau de Cologne, 1 pint, Add, strong acetic acid, 1/2 oz.
Filter if necessary.
Without unnecessarily repeating similar formulae, it will be obvious to the reader that vinegar of any flower may be prepared in a similar way to those above noticed; thus, for vinaigre a la jasmine, or for vinaigre a la fleur d"orange, we have only to subst.i.tute the esprit de jasmine, or the esprit de fleur d"orange, in place of the Eau de Cologne, to produce orange-flower or jasmine vinegars; however, these latter articles are not in demand, and our only reason for explaining how such preparations may be made, is in order to suggest the methods of procedure to any one desirous of making them leading articles in their trade.
We perhaps may observe, _en pa.s.sant_, that where economy in the production of any of the toilet vinegars is a matter of consideration, they have only to be diluted with rose-water down to the profitable strength required.
Any of the perfumed vinegars that are required to produce opalescence, when mixed with water, must contain some gum-resin, like the hygienic vinegar, as above. Either myrrh, benzoin, storax, or tolu, answer equally well.
SECTION VI.
BOUQUETS AND NOSEGAYS.
In the previous articles we have endeavored to explain the mode of preparing the primitive perfumes--the original odors of plants. It will have been observed, that while the majority can be obtained under the form of otto or essential oil, there are others which hitherto have not been isolated, but exist only in solution in alcohol, or in a fatty body. Of the latter are included all that are most prized, with the exception of otto of rose--that diamond among the odoriferous gems.
Practically, we have no essential oils or ottos of Jasmine, Vanilla, Acacia, Tuberose, Ca.s.sie, Syringa, Violets, and others. What we know of these odors is derived from esprits, obtained from oils or fats, in which the several flowers have been repeatedly infused, and afterwards infusing such fats or oils in alcohol. Undoubtedly, these odors are the most generally pleasing, while those made from the essential oils (_i.e._ otto), dissolved in spirit, are of a secondary character. The simple odors, when isolated, are called ESSENTIAL OILS or OTTOS; when dissolved or existing in solution in alcohol, by the English they are termed ESSENCES, and by the French EXTRAITS or ESPRITS; a few exceptions prove this rule.
Essential oil of orange-peel, and of lemon-peel, are frequently termed in the trade "Essence" of orange and "Essence" of lemons, instead of essential oil or otto of lemons, &c. The sooner the correct nomenclature is used in perfumery, as well as in the allied arts, the better, and the fewer blunders will be made in the dispensatory. It appears to the writer, that if the nomenclature of these substances were revised, it would be serviceable; and he would suggest that, as a significant, brief, and comprehensive term, Otto be used as a prefix to denote that such and such a body is the odoriferous principle of the plant. We should then have otto of lavender instead of essential oil of lavender, &c. &c. In this work it will be seen that the writer has generally used the word OTTO in place of "essential oil," in accordance with his views. Where there exists a solution of an essential oil in a fat oil, the necessity of some such significant distinction is rendered obvious, for commercially such articles are still called "oils"--oil of jasmine, oil of roses, &c. It cannot be expected that the public will use the words "fat" oil and "essential" oil, to distinguish these differences of composition.
There are several good reasons why the odoriferous principle of plants should not be denominated oils. In the first place, it is a bad principle to give any cla.s.s of substances the same signification as those belonging to another. Surely, there are enough distinguishing qualities in their composition, their physical character, and chemical reaction, to warrant the application of a significant name to that large cla.s.s of substances known as the aroma of plants!
When the chemical nomenclature was last revised, the organic bodies were little dealt with. We know that we owe this universal "oil" to the old alchemist, much in the same way as "spirit" has been used, but a little consideration quickly indicates the folly of its continued use.
We can no longer call otto of rosemary, or otto of nutmegs, essential oil of rosemary or nutmegs, with any more propriety than we can term sulphuric acid "oil" of vitriol. All the chemical works speak of the odoriferous bodies as "essential" or "volatile" oils, and of the greasy bodies as "fat" or "unctuous" oils. Oils, properly so called, unite with salifiable bases and form soap; whereas the essential or volatile oils, _i.e._ what we would please to call the ottos, do no such thing. On the contrary, they unite with acids in the majority of instances.