INDEX. 54f. 



Oxen dull arid phlegmatic animals, but capable of inftruilion, 456, 45^7. MucB chan- 

 ged by domeftication, 46 1. 



Oyfter. Its motions defcribed, 140. Is endowed with fome degree of intelligence^ 

 ibid. 



P 



Pairing. See marriage. Many animals pair, 277, 279- 



Palm-tree. Its mode of culture in Arabia no proof of the fexes qf plants. See fexes. 



Palpi of infefts defcribed, 86. 



Papillae. See nerves. 



Papilio. See butterfly. ^ 



Parental afFeflion. See love. 



Pedkulus; See loufe. 



Pelican. Her mode of fupplying her young with drink, 220i 



Phalaena. See moth. . ^ 



Phryganea. See flies. 



Pies. Their nefts very various, 32. 



Pilchard's. See herrings. 



Plants. Difficulty of difl:ingu!fliing them from animals, 2. Definitions of them bf 

 Jungius, ibid. ; by Ludwig, ibid, ; by Linnaeus, 3. Examples of the motions of 



plants, 5, 8. Their whole ftruflure may be confidered as a ftomach for receiving 



their food, 8. Other examples of vegetable movements, 9, 10. Many of them 

 have the power of irritability, 11. Between vegetables and minerals there is hardly 

 any analogy, 12, 13. Analogies between animals and plants, xiriginating from their 

 fVrufture and organs, 14, — 24. Sketch of the flrufture of plants, 18, — 20. Their 

 oeconomy and funftlons are refults of a vafcular texture, 20. Analogies arifing froni 

 their growth and nourifhment, 24, — 30. Food of plants and of animals compared, 

 25. Analogies between the animal and vegetable derived from their diflemination 

 and decay, 30, &c. Analogies between the eggs of animals and the feeds of plants, 

 35. Some plants may be confidered as viviparous, 37. Plants have their feafbns as 

 well as animals, 39. Are all fubjeft to many difeafes, and at laft to individual diflb- 

 lution, 41. Of the fuppofed. fexes of plants, 245. See fexes. Pollen or farina of 

 plants fuppofed to be analogous to the male organs of generation, 247. New varie- 

 ties of plants often proceed from accidental cayfes, 253, 254. Plants, as well as ani- 

 mals, undergo transformations, 305, 306. See transformations. Thofe which grow 

 quickly foon perifh, 509. Their longevity, 517.. 



Pollen. See plants, and fexes. . 



Polypus,, 



