Read, Carveth, 1848- · Cambridge, University Press · leaf 19
teration of climate is known to have happened during that period, it seems neces- sary to fall back upon " spontaneous " variation (as one must in many other cases) ; that is to say, from causes which are at present beyond our vision, the fateful ape did, in fact, prefer animal food so decidedly as… … on that given by Dr. A. Keith looo^L". ScalE : I ♦n.*-, in The Antiquity of Man, p. 509. If wo suppose the differcntiatiun of the Hominidoc to have begun before the close of the Oligoeene, about (say) 3,500,000 years aro allowed for the evolution of the existing species of Man. All these reckonings…
