45 S INDEX. 
Britijh Mufeum , how fecured from lightning, p. 6 4. 
Brydone,- Patrick, Efq. on a fiery meteor, and fome new 
electrical experiment?, p. 163. 
Buff on, M. de, his obfervations on the Lagopus corrected 
p. 224. His opinion concerning che of Arillotle 
confldered, p 274, 275. 
Bid-finches, a rnufical compofuion made for two, p. 271. 
Barbel , common, called Marthy, at Hudfon’s-Bay, p. 152. 
C. 
Call , of a bird,. what it means, p 250. 
Canary Birds , ling chiefly either the tit-lark or the night- 
ingale notes, p. 26 1 . 
Cajlr alien, does not improve the voice, p. 278. 
Cavendifa , Hon. Henry, his new experiment on electricity, 
p. 47b. 
Cavern , of Dunmore Park,, near Kilkenny in Ireland, de- 
feribed; p. 16. Its petrifactions, p. 17. Human 
bones found in it, p. 18. 
Caviar , made from a fpecies of Sturgeon, p. 151. 
Charcoal. See ElcSlrical. 
Chclfea Plants , for 1771, p. 30. 
Chirp , the fir H found emitted by birds, p. 249. 
Circulation. See Sap. 
Cod and Ling , very proper for making of Ifinglafs, p. 13^ 
Committee , report from the, on powder magazmes at Pur- 
fleet, p. 42. Recommend an iron bar tapering to a 
fharp point, and. rai fed ten feet above the building, p. 
45. Perfift in their opinion, p. 66 . 
Conic Sedans, confidered two different ways, p. 341. 
' Their properties derived from their defeription, by Mr. 
Jones, p. 343, &c. 
Cuckows , their natural notes, p. 269. 
D, 
