INDEX. 283 



breeding ; residence, with their nests and eggs ; their flesh ; 

 method of taking them in the Feroe Islands ; anciently a 

 law in Norway concerning those who died in taking them, 

 iv. 383. 



Gun, wind-gun, instrument determining the elasticity of the 

 air ; a ball from it pierces a thick board, i. 262. Great 

 guns, in climates near the equator, with every precaution, 

 after some years, become useless, and why, 267. 



Gunpowder readily fires with a spark, not with the flame, 

 i. 73. Will not go off in an exhausted receiver ; a train of 

 gunpowder laid, one part in open air, the other part in 

 vacuo, the latter will remain untouched, 284. 



Gurnard, description of this fish, v. 121. 



Gymnotus, the carapo, description of this fish, v. 123. 



Gyr-falcon, exceeds all others in largeness of size ; its des- 

 cription, iv. 99. 



Gyrle, name given by hunters to the roebuck, the second 

 year, ii. 336. 



H 



Haddock, a periodical shoal appeared on the Yorkshire coasts 

 on December 10. 1766, and exactly on the same day in the 

 following year, v. 136. 



Haemorrhois, a kind of serpent, v. 370. 



Hail, Cartesians say, is a frozen cloud, half melted and frozen 

 again in its descent; the most injurious meteor known in 

 our climate ; hail-stones fourteen inches round ; struck out 

 an eye of a young man, and killed him on the spot ; a 

 dreadful shower, recorded by Mezeray, fell in 1510, the 

 hail-stones were of a blueish colour, and some weighed a 

 hundred pounds ; the fishes were great sufferers in that 

 general calamity, i. 317, &c. 



Hair of the Roman ladies praised for the redness of its shade, 

 i. 407. Found most different in different climates ; marks 

 the country and the disposition of the man ; by the ancients 

 held a sort of excrement, produced like the nails ; accord- 

 ing to moderns, every hair lives, receives nutriment, fills, 

 and distends, like other parts of the body ; takes colour from 

 the juices flowing through it; each, viewed with a micro- 

 scope, consists of five or six lesser, wrapped up in one com- 

 mon covering, and sends forth branches at the joints, suit- 

 able to the size or shape of the pore through which it issues ; 

 bulbous at the root, and its end resembles a brush: length and 

 strength of hair a mark of a good constitution ; Americans 

 and the Asiatics have it thick, black, straight, and, shining; 

 inhabitants of the torrid climates of Africa, have it black, 

 short, and woolly ; the people of Scandinavia have it red, 



