File:The hand - its mechanism and vital endowments, as evincing design, and illustrating the power, wisdom, and goodness of God (1874) (14595472169).jpg

Identifier: handitsmechanism1874bell (find matches)
Title: The hand : its mechanism and vital endowments, as evincing design, and illustrating the power, wisdom, and goodness of God
Year: 1874 (1870s)
Authors: Bell, Charles, Sir, 1774-1842 Shaw, Alexander, 1804-1890
Subjects: Hand Intelligent design (Teleology) Hand Religious Philosophies Biological Evolution Evolution
Publisher: London : G. Bell
Contributing Library: Francis A. Countway Library of Medicine
Digitizing Sponsor: Open Knowledge Commons and Harvard Medical School

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FROM THE HOLE. mole is fitted, by means of its anterior extremities,to plough its way under gTound. The bat has the samesystem of bones; but they are adapted to form a wingfor raising the animal in the atmosphere, and with aprovision for its clinging to the wall, although not tobear upon it. In both these animals we recogniseevery bone of the upper extremity; but how verydifferently formed and joined! In the mole, thesternum or breast bone, and the clavicle are remarkablylarge: the scapula, or shoulder blade, assumes theform of a high lever: the humerus is thick and short,and has such prominent spines for the attachment of 74 COMPA.EATIVE ANATOMY chap.iii. muscles as to indicate great power. The spines whichgive origin to the muscles of rotation, project in an extra-ordinary manner; and the hand is large, flat, and soturned that it may shove the earth aside like a plough-share.*
Text Appearing After Image:
SKELETON OF BAT. There can be no greater contrast to these bones ofthe mole than is presented in the skeleton of the bat.In tliis animal the bones are light and dehcate ; and * The snout may vary in its internal structure with new offices. Naturalistssay that there is a new element in the pigs nose : and it has, in fact, twobones which admit of motion, wliilst they give more strength in digging up theground. As moles plough the earth with their snouts, they likewise havethese bones, and their head is shaped like a wedge, to assist in burrowing andthrowing aside the earth. The conformation of the head, and the strength ofIts bones, and the new adjustment of the muscle, (the platysma myoides)which is cutaneous in other animals, to assist in moving the head, are amongthe curious changes of common parts for enabling them to peiform new offices.See again the Additional Illustrations in the Appendix. CHAP. III. OF THE BAT. 75 whilst they are all marvellously extended, the phalangesor the ro

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