Evolution; its nature, its evidences, and its relation to religious thought . imbsthat the organism chiefly reacts on the environment, andis modified by it. Fore-limbs.—In the accompanying figures (Figs. 5-18) we have represented, side by side, the fore-limbs ofmany vertebrates, taken from all the classes—mammals,birds, reptiles, and fishes. For convenience of compari-son, the corresponding parts are similarly lettered in , in order to identify easily certain important corre-sponding segments, we have drawn through them a con-tinuous dotted line. In man, nearly all the parts arepresent
Evolution; its nature, its evidences, and its relation to religious thought . imbsthat the organism chiefly reacts on the environment, andis modified by it. Fore-limbs.—In the accompanying figures (Figs. 5-18) we have represented, side by side, the fore-limbs ofmany vertebrates, taken from all the classes—mammals,birds, reptiles, and fishes. For convenience of compari-son, the corresponding parts are similarly lettered in , in order to identify easily certain important corre-sponding segments, we have drawn through them a con-tinuous dotted line. In man, nearly all the parts arepresent, and his limbs, therefore, may be taken as a termof comparison; for mans structure, except his brain, isfar less modified than that of many animals. Note, then, the following points : 1. The collar-bone(clavicle) is associated with wide separation of the shoul-ders, and the free use of the fore-limb for prehension or iU EVIDENCES OF THE TRUTH OF EVOLUTION. for flight, but is gradually lost in proportion as the fore-limb is brought nearer together and used for support,. because it is no longer wanted. I say gradually, for al\the steps of the passing away may be found. The use-less rudimentary condition is not uncommon. PROOFS FROM HOMOLOGIES. 115 2. The coracoid (c), it is seen, is a small, beak-likeprocess of the blade-bone (scapula) in man and mam-mals ; but in birds (Fig. 11) and reptiles (Figs. 14, 18)
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectreligion, bookyear192
