INDEX. 
Cole brook, William , ftupified by the fmoak of Tea- coal, 
p. 454. 
Comet in 1664, feen for four months, p. 4, 
Connoijfance des temps , who the author of it, p. 607. 
Corals , no fpecies of them Zoophyta, contrary to the opi- 
nion of Linnaeus, p. nr. 
Cornwall, account of the agitation of the fea there, and of 
two thunder ftorms, p. 507. — of the tianfit of Venus 
obferved there, p. 202. 
Cryjlals , double refraction of the rays of light in fome, 
p. 486. 
D. 
Da Co ft a, Mendez , his letter concerning fome natural pro- 
ductions in Scotland, communicated to him by Mr. 
Murdock Mackenzie, p. 103 — his natural hiftory of 
Chryfolites, p. 448. 
DavieV s method of extracting CataraCts, p. 519. 
De la Caille, Abbe, his obfervations concerning the Moon’s 
parallax recommended to Mr. Mafkelyne, p. 21. 
De la Lande , royal profefior of mathem. at Paris, his ob- 
fervations there on the tranfit of Venus, p. 21 6 — on 
the fame, communicated to him fromTobolfk in Sibe- 
ria, p. 254 his miflake concerning Sir Ifaac Newton 
candidly retraCted, p. 369, — extraCt of his letter to Mr. 
Mafkelyne, p. 607. 
Delaval, Efqj his account of feveral experiments in Elec- 
tricity, p. 353. — remarks on his eleCtrical experiments 
by Mr. John Canton, p. 457. 
Dixon, and Mafon, Meffieurs, their obfervations made at 
the Cape of Good Hope, p.378. 
Dodfon led into a miftake by following Dr. Brakenridge, 
p» 54 • 
Dolland , Mr. his theorem concerning the quantity of the 
aberration of the rays of light refraCted through a lens on 
account of the imperfection of the fpherical figure, 
p. 17. 
Dorfetjhire , an uncommon phenomenon there, p. r 1 9. 
Vol. LI I. 4 R Dunn, 
