. Domesticated animals and plants : a brief treatise upon the origin and development of domesticated races, with special reference to the methods of improvement . Breeding; Domestic animals; Plants, Cultivated. 2 14 DOMESTICATED ANIMALS AND PLANTS We know that several horselike forms developed in South America, but that all perished for one cause or another, one at least from soft teeth. It is exceedingly remarkable that while the North American horse progressed almost up to the modern Head. Protohippus Mesohippus Protorohippus Hyracotherium (Eohippus) Fore Foot OneToe Splints of 2nd and 4th d
. Domesticated animals and plants : a brief treatise upon the origin and development of domesticated races, with special reference to the methods of improvement . Breeding; Domestic animals; Plants, Cultivated. 2 14 DOMESTICATED ANIMALS AND PLANTS We know that several horselike forms developed in South America, but that all perished for one cause or another, one at least from soft teeth. It is exceedingly remarkable that while the North American horse progressed almost up to the modern Head. Protohippus Mesohippus Protorohippus Hyracotherium (Eohippus) Fore Foot OneToe Splints of 2nd and 4th digits ThreeToes Side toes not touching the ground ra Three Toes II Side toes M touching the ground; Splint qfSihdigii Four Toes Four Toes Splint of 1st digit HindFoot One^Toe Splints of 2nd and 4th ThreeToes Side toes not touching the ground Three Toes Side toes touching the ground Three Toes Splint of 5th digit Teeth Long- Crowned, Cement- covered Short- Crowned, without Cement Fig. 38. Comparative drawings of skulls, feet, and teeth of prehistoric horses, showing evolutionary development. Reproduced, by permission, from "Origin and History of the Horse," by H. F. Osborn type,^ he became extinct for some reason, and, so far as we know, before he was ever domesticated. What caused this extinction here and yet preserved the Asiatic form till man came upon the earth we cannot, with our present knowledge, even conjecture; though it is known that the 1 He had reached the size of the Shetland pony with three toes, only one of which rested firmly on the ground, digits II and IV being much like the " dew claws " (digits II and V) of pigs ; digits I and V being represented by " splints" (digits numbered I-V beginning on the inside).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Daven
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Keywords: ., bookauthordavenpor, bookcentury1900, bookdecade1910, bookyear1910
