J30 



INDEX. 



Blood. Its circulation conne£led with refpiration, 107. Showers of it accounted for, 



301. 

 Bones. Birds breathe through them, in. 

 Brackeleys, a fpecies of the ox, which are taught by the Africans to perform wonderful 



aftions, 456, &c. 

 Brain. See nerves. 

 Brain. A fhort defcription of it, jr. The fource of all fenfation and motion, 133. 



Suppofed to fecrete and diftribute the nutritious matter of food, 205. 

 Breathing. See refpiration. 



Brutes, See animals. ■ ' 



Bug. Some account of it, 91. 

 Butterfiies. Defcription of them, 92. Gave rife to the notion of fliowers of blood, 



302. Void drops of blood, 303. 



- C / 



Cabins. See beavers. '' 



Camel and dromedary, beCde four ftomachs, have a refervoir for holding water, 63. !. 



Their manners and difpofitions, 64. t 



Camel-cricket. Regarded as a facred animal, 91. 



Carnivorous animals. See animals. Their ftruflure adapted to their difpofitions, 57. 

 Are not fo apt to devour women as men, 238. Man the moft rapacious of all animals, 

 375. Of carnivorous quadrupeds, 378. Of carnivorous birds, 380. Of carnivo- 

 rous infefts, 383. Advantages derived from animals preying upon one another, 390. 

 Carnivorous animals arc the barriers againft noxious inundations of other kinds, 



394- 

 Caterpillars. See infefts. Their mode of refpirlng, 124. Are of no fex, 239. When 



they arrive at the age of puberty, 268. Of their transformations, 290. Caft their 

 Ikins, 291, 300. Their different modes of retiring previous to their transformation. 

 • A defcription of them, 293. The circulation of their blood changes its direc- 

 tion, 294. Their different modes of behaving when about to transform, 298. Spin- 

 ning of the filk-worm defcrjbed, 299. The flies exift in the bodies of the cater- 

 pillars, 301. Some of them devour their own fpecies, 384. Have numberlefs ene- 

 mies, 385. Without a profufion of them fmall birds could not be fupported, 395. 

 Common kind affociate, 425. Some of them are republicans, 429. 



Caufe. We muft at laft have recourfe to a final caufe, 335. 



Cells. See bees, and wafps. Air-cells in birds defcribed, in. 



Chain. Of the progreffive chain of beings, 520. 



Changes of form. See transformations. 



Chara£lers 



