[Footnote 123: Mr. Darwin"s coral reefs: The Structure and Distribution of Coral Reefs, published in 1848.]
[Footnote 124: Professor Jukes (1811-1869): an English geologist.]
[Footnote 125: Mr. Dana (1813-1895): a well-known American geologist and mineralogist; a professor at Yale from 1845. He wrote a number of books among which is Coral and Coral Reefs.]
[Footnote 126: Jura.s.sic period: that part of the geological series which is older than the Cretaceous and newer than the Tria.s.sic; so called from the predominance of rocks of this age in the Jura Mountains. The three great divisions of fossiliferous rocks are called the Tria.s.sic, the Jura.s.sic, and the Cretaceous.]
REFERENCE BOOKS
The following reference books are suggested for a more complete treatment of various points in the text:--Andrews" History of England.
Green"s Short History of the English People. Traill"s Social England.
Roger"s A Student"s History of Philosophy. Royce"s The Spirit of Modern Philosophy. Huxley"s Life and Letters. Smalley"s Mr. Huxley, in Scribner"s Magazine for October, 1905. Darwin"s Life and Letters.