Aldrich, Thomas Bailey, 1836-1907 · Boston, CT : Hall and Locke · leaf 118
animalsof the lower Tertiary — feet which seem to be betterfitted for tree-cUmbing than anything else — into feetsuch as we find in the horse. Yet the change is broughtabout by easy stages that lead the successive creaturesfrom the weak and loose-jointed foot of the ancientforms to the solid,… … Fio. 10. Feet op Tertiary Mammals. The oldest of these creatures that lead to the horsesis called EoMppus or beginning horse. This fellow hadon the forefeet four large toes, each with a small hoofand fifth imperfect one, which answered to the thumb.The hind feet had gone further in the change, for…
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