. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . FIG. 292.—End of the humerus of various animals including man, showing position ofthe humerus canals. .4,Hatteria; B, Lacerta; C, cat; D, man. (After Wiedersheim.) the condition is not very different. Implements of stone, bone,bronze, and iron mark stages in the development of primitivetribes. Fossil remains are confined almost wholly to bonesburied in quicksand or in the drippings of caves. Of fossilmonkeys, several genera have been described. Pan sivale
. Evolution and animal life; an elementary discussion of facts, processes, laws and theories relating to the life and evolution of animals . FIG. 292.—End of the humerus of various animals including man, showing position ofthe humerus canals. .4,Hatteria; B, Lacerta; C, cat; D, man. (After Wiedersheim.) the condition is not very different. Implements of stone, bone,bronze, and iron mark stages in the development of primitivetribes. Fossil remains are confined almost wholly to bonesburied in quicksand or in the drippings of caves. Of fossilmonkeys, several genera have been described. Pan sivalensisis a species of extinct gorilla from the Pliocene of the Punjaub. Of all the fossil primatesthe one of the greatestinterest is Pithecanthropuserectus, from the upperPliocene of Java, latelydescribed by Dr. EugeneDu Bois. This specieshas been designated byHaeckel as the last link;in human genealogy. Its FIG. human eye showing, Pa, arrange- characters have been heldment of the third eye, fftica semilunaris. to COlTCSpOnd with tllOSC. of the hypothetical ape-man imagined by Haeckel and named Pithecanthropus alaulus,before these remains were found. The generic name of theimaginary ape-man has been transferred to the actual discovered relics of this species are scanty enough, consist-ing of the skullcap, a femur, and two teeth (Figs. 294 and 295). MANS PLACE IX NATURE 463 In HaeckePs Cambridge lecture, The Last Link, the factsconcerning this fossil are thus summed up: The remains in question rested upon a conglomerate which liesupon a bed of marine marl and sand of Pliocene Age. Together withthe bones of Pithecanthropus were found those of Stegodon, Leptobos,Rhinoceros, Sus, Felis, Hyaena, Hippopotamus, Tapir, Elephas, and agigantic Pangolin. It is re-markable that the first twoof these genera are now ex-tinct, and that neither hip-popotamus nor hyaena existsany longer in the orientalregion. If we may judgefrom these fossil remains,the bones of Pithecanthro
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