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THE POPULAR SCIENCE MONTHLY. 



lie opened a new pathway in science. Tlie thought of unity thus 

 presented for the first time by Belon is the same that was de- 

 clared two hundred and fifty years afterward by Geoffroy Saint- 

 Hilaire. Belon's division of birds — into the FissiiJedes and the 



Fig. 3.— Skeletons op a Bird and op Man. 

 AB. Birds have no teeth, but a cutting beak, strong or weak, hxrge or small, according to the matter 

 they have to pick to pieces and on which they live. M. Two long and narrow scapulae, one on 

 each side. (E. Bone called the merry-thonght. or breast-bone, found in no animal except the bird. 

 D. Six ribs, attached to the chest of the stomach in front, and behind to the six vertebrse of the 

 back. F. The two bones of the hips are long, for there are no vertebrae below the ribs. G. Six 

 bones of the ramp. H. The round bone of the knee. I. The sutures of the skull do not show 

 unless it is boiled. K. Twelve vertebroe of the neck, and six of the back. L. The two key- 

 bones. N. The bones of the arms or shoulders. O. The chest of the breast. P. The little bone 

 of the elbow. Q. The large bone of the elbow. K. The bone of the wrist, called carpus. S. The 

 knots and articulations, called condili. T. The pinion, called appendix, which is related to the 

 wing as the thumb to the band. T. The bone after the wrist called metacarpium. U. The extrem- 

 ity of the wintr, which is like our fingers. V. A number of bones at the end of the wing, two of 

 which have the form of netting-needles (or shuttles); one larger and the other smaller, which is 

 proportioned in the bird as in us the hollow of the hand, which is called in Greek Thenar, and in 

 Latin Palma. X. The large bone of the thighs, one on each side. Y. The large bone of the leg. 

 Z. The small bone of the leg. &. The bone given for the leg to birds, corresponding with our 

 heel. AA. Just as we have four {qvatre) toes on the feet, so have birds four (gvat)'e) fingers, the 

 hinder one of which is given in proportion as the big toe with us. BB. Four articulations in the 

 outer finger. CC. Three articulations in this finger. DD. Two articulations in this finger, aa 

 also in the hinder one. 



