a Natlonul Museuirii " 30! 



hu"ai3n form,, requires, peculiar strength. All th6 larger and 

 stronger muscles of the body, which move the thighs and 

 hind-legs of quadrupeds, move round or are attarc' ed to it. 

 The bones differ from those above and below them insize 

 and compactness, and derive great fifrmness from their cir- 

 cular disposition. If- great strength was requisite iri the 

 covering which was to protect the brain of the individual, 

 .no less was needful for that which was to form the shelter^', 

 and as it were the antenatal cradle^ of the newly conceived 

 being. Here one of the most interesting relations of ana- 

 tomy is displayed ; a relation not only to the safety and well- 

 being of the individual, but also to the continuance of the 

 species, in the remarkable expaiision of the bones of the 

 female pelvis beyond those of the male. These, and nume- 

 rous other formations having similar relations, are obviously 

 formed by a power regarding prospectively their future use. 



e. The exact correspondencies of legs, feet, arms, and 

 hrmds, enable them to cooperate equally and mutiially in 

 jiowerful exertion and in rapid movement. 



f. Teeth. These are different in different animals ; but 

 wherever they are found, a provision is also found for giving 

 those motions to the jaw from which their chief use is de- 

 rived. A relation then exists between the muscles of tht 

 jaw and the solid substance, between the form and sub- 

 stance of the jaw and the teeth, bet>.veea these and the or- 

 gans necessary to deglutition, between the latter and the 

 gullet; between that and the stomach j between the sto- 

 mach an<l the gastric juice ; between this and the absorbents', 

 Jacteals, and lymphatics, which secrete the chyle or neces- 

 sary nuirimeni, and convey it to-the thoracic duct; between 

 this duct and the subclavian and other veins, between veins 

 and arteries, between arteries and lungs, between all and 

 the heart. 



g. The mutual relations of muscles and nerves, of mus- 

 cles to each other, and of nerves to each other, contributing 

 constantly to the security and well-being of individuals and 

 species, will appear to the most cursory observer. 



h. Organs of sense. Dissected eye. Ear, nose, and 

 tongue, &:c. 



" The 



