REFERENCES
The best collection of fossil horses, and one specially arranged to illustrate the line of descent of the modern horse, is to be found in the American Museum of Natural History, New York, but some good specimens, of particular interest because they were described by Professor Marsh and studied by Huxley are in the Yale University Museum. They are referred to in Huxley's "American Addresses; Lectures on Evolution." "The Horse," by Sir W. H. Flower, discusses the horse in a popular manner from various points of view and contains numerous references to books and articles on the subject from which anyone wishing for further information could obtain it.
Fig. 35.—The Mammoth.
From a drawing by Charles R. Knight.
X
THE MAMMOTH
"His legs were as thick as the bole of the beech,
His tusks as the buttonwood white,
While his lithe trunk wound like a sapling around
An oak in the whirlwind's might."