. The evolution of the earth and its inhabitants; a series delivered before the Yale chapter of the Sigma xi during the academic year 1916-1917. FIG. B. FIG. C. PLATE IV.—Restorations of archaic mammals. A, cursorial type, PhenacoJusprimeevuj) B, swamp-dwelling amblypod, Coryphodon; C, four-hornedamblypod, Dinoceras, the culmination of its race. After Lull. AND ITS INHABITANTS 137 expansion of grazing forms—horses, camels, deer—and therestriction and often the extinction of browsing types. It istrue that browsing forms are still extant, but not in their oldprofusion nor in their old homes, whi
. The evolution of the earth and its inhabitants; a series delivered before the Yale chapter of the Sigma xi during the academic year 1916-1917. FIG. B. FIG. C. PLATE IV.—Restorations of archaic mammals. A, cursorial type, PhenacoJusprimeevuj) B, swamp-dwelling amblypod, Coryphodon; C, four-hornedamblypod, Dinoceras, the culmination of its race. After Lull. AND ITS INHABITANTS 137 expansion of grazing forms—horses, camels, deer—and therestriction and often the extinction of browsing types. It istrue that browsing forms are still extant, but not in their oldprofusion nor in their old homes, while the grazing forms arenumerous and characteristic of the widespread steppes theworld over. Origin of man. We have observed the influence of geologicchange in the evolution of the brute, and we have now toinquire whether mankind in his long upward course has beenamenable to those same laws or whether he has been a thingapart from other forms of life, whose development has beencontrolled by other influences. As the primates, the group towhich mankind belongs, are to be classed with the modernizedmammals, their course of evolution up to the
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