306 INDEX. 



Lepagodaster, description of this fish, v. 124*. 



Leprosy, in what manner the Indians endeavour to prevent 

 the Arabian leprosy, or the elephantiasis, a disease to which 

 man and the elephant are equally subject, iii. 34*2. 



Leuwenhoeck, his opinion about the rudiments of animals, i. 

 360. 



Leymmer, a dog of the generous kind, iii. 14. 



Libella, the dragon-fly t general characteristics : eggs : food 

 of the young : how they prepare to change from the reptile 

 to the flying state: description: the strongest and most 

 courageous of all winged insects : the business of impregna- 

 tion, how performed, vi. 2. 



Liboya, dimensions of this serpent, v. 377. 



Lichen-rangiferinus, the food of the rein-deer, a moss in Lap- 

 land of two kinds : the white in the fields, and the black on 

 the trees, ii. 351. 



Lidme, name of the eleventh variety of gazelles, by M. Buffon, 

 ii. 287. 



Life, formerly supposed producible only by oviparous and 

 viviparous generation; but later discoveries induce many 

 to doubt whether animal life may not be produced merely 

 from putrefaction, i. 364-. The beginning of our lives, as 

 well as the end, is marked with anguish, 385. That of in- 

 fants very precarious till the age of three or four : instan- 

 ces of it, 394-. The duration of life in general nearly the 

 same in most countries, ii. 66. The most useless and con- 

 temptible, of all others the most difficult to destroy, vi. 180. 



Light, the hand exposed to broad day-light for some time, 

 then immediately snatched into a dark room, will still be 

 luminous, and remain so for some time, and why : dangerous 

 to the sight to look steadily upon bright and luminous ob- 

 jects, and why : such persons as read or write for any con- 

 tinuance, should choose a moderate light, ii. 31. 



Light sent forth by the glow-worm, how produced hitherto 

 inexplicable, vi. 156. Sent forth by the star-fish, resembles 

 that of phosphorus, 181. 



Lightning is an electrical flash produced by the opposition of 

 two clouds, i. 317. Flashing without noise, illuminates the 

 sky all around in the torrid zone, 320. Of the torrid zone, 

 is not so fatal or so dangerous as with us, otherwise those 

 regions would be uninhabitable, 322. 



Lights, northern lights illuminate half the hemisphere, i. 320. 



Limbs of the inhabitants near the poles are sometimes frozen 

 and drop off, i. 328. Some animals live without, and often 

 are seen to reproduce them, vi. 178. 



Lime, manner of making it in Persia, i. 77. 



Line, upon the approach of the winter months under the Line, 

 the whole horizon seems wrapt in a muddy cloud, i. 321. 

 In America, all that part of the continent which lies under 



