54,4 I N D E "X. 



tion of the mafon-bee fometimes retrograde, 151. The 

 rate at which found moves, 176. ChiiJren derive great 

 happinefs from motion, 202. 



Moutlon, the original ftock of the flieep, 464. 



Muhiplication. The hydra of Linnaeus multiplies by fend- 

 ing otFfhoots from its body, 41. The bell-polypus mul- 

 tiplies by fplitting longitudinally, ibid ; and the funnel- 

 fhaped polypus by fplitting tranfverfely, 41. The dart- 

 millepes likewife multiplies by fpontaneous feparav'on, 

 ibid. Infufion-animalcules multiply by continued diviftons 

 and fubdivifions, 42. Puceron multiplies without impreg- 

 nation, 44. A profuiion of animal life one great intention 

 of Nature, 396. Noxious multiplication refrained by va- 

 rious caufes, '597, 398. 



Mufca. See flies. 



Mufcles. Their progreflive motion defcribed, 145. 



Mufcles. The inftruments of animal motion, 141. 



Mulical ears. See ears. 



N 



Nature, in the formation of animals and vegetables, feems to 

 have a6led upon the fame general plan, 20. Her inten- 

 tions in changing forms, 313. If properly underftood, 

 her intentions are never wrong, 394. Seems to pay little 

 attention to individuals, but uniformly fupports the fpe- 

 cies, 395. Advantages derived from her allowing ani- 

 mals to prey on one another, 396, &c. It gives rife to 

 mutual improvem.ent, 395. A profufion of animal life 

 feems to be a general intention of Nature, 396. There is 

 a wonderful balance in the fyftem of animal defl:ru6tion, 

 397. Nature obferves a uniform gradation of beings, 522. 



Nerves. A fliort defcription of them, 6i. The fource of 

 all fenfation and motion, 141, 168, 182. Their papillae 

 the immediate inftruments of fenfation, 1 82. 



Nefts. See birds and habitations. Penfile nefts, 326. Cu- 

 rious neft of the taylor-bird, ibid. Cuckow makes none, 

 327. Nefts of different birds, 328. Nefts of various in- 

 fers, 330. Wafp's neft defcribed, 354. Nefts or hills 

 of the termites, 365 ; of caterpillars, 429. 



Nettle. Sea-nettle's motions extremely flow, 150. 



Neuropterous infects. Defcription of them, 102, 



Nidification. See birds. 



Nofe. Defcription of that organ, 169. 



