INDEX 34-5 



Pinche, or red-tailed monkey defcribed, viii. 211. Is a beaat'tful 



animal, but extremely delicate, 212. 

 Pine-weafel, or yellow-breafted martin defcribed, iv 237. The 

 female feizes the nefts of fquirrels, ducks, and buzzards, 246- 

 Pifmire eater, v. 333. n. 

 Pithecus, viii. 206. n. 



Planets, how formed, i. 58. Difcoveries trade concerning their 

 revolutions by Galileo and Newton, 61. Difficulties attend- 

 ing the explanation of the planetary motions, 62. Their re- 

 volutions accounted for, from an impulfive and attradive 

 force, 63. Probable caufe of the impulfive force, ik Orbits 

 of the planets nearly circular, si Conjedlure concerning the 

 formation of planets by the falling of a comet into the fun, 

 64. Have probably received their centrifugal forces all at 

 onetime, 66. 11 of them, together with their fatellites, not 

 equal to yfg-th of the fun, 67. Might be driven oflF in a li- 

 quid ftate, all at once, by the (Iroke of a comet, 6S. Their 

 denfities decreafe in proportion to their diftance from the fun, 

 and why, ib. 

 Piatyceros, iv 1 13. 

 Polatouche, v. 307. n. 



Polecat defcribed, iv. 248. Might be ufefully employed in di- 

 minifhing the number of rabbits, 249. Is confined to the 

 temperate climates, 250. 

 Pongo, See Orang-Outar.g. 

 Pore-epic, vii. 69. 

 Porcelliis, vii. 178. n. 



Porcupine defcribed, vii. 69. Cannot dart its quilis to a di- 

 ftance, 71. Can exift and multiply in cold countries, 73. 

 Brafilian porcupine defcribed, 76. Canada porcupine de- 

 fcribed, 83. Is a fleepy animal, 85. 

 Porcus, iv. 304. viii. 240. 

 Pouc defcribed, viii. 233. 

 Preacher monkey defcribed, viii. 176. n. 

 Profimia, vii. 233. n. 

 Pteropus, V. 2S3 

 Puberty ; diflertation on it, iii. 400. Marriage the natural llat^ 



of the human fpecies after puberty, 427.. 

 Putorius, iv. 248. n. 



Quato, viii, 184. 

 C^ojas-marrou, viii. 77. n. 



