INDEX. 
Chatham , a folar eclipfe obferved there, Ap. i, 1763.. 
P‘ 1 7 1, 
Cicada , of North America defcribed, p. 65. Its firfl ap- 
pearance, ibid. How generated, 66, 67. General re- 
marks upon it, 68. 
Citian infcriptions. See Infcriptions. 
Citium. See Infcriptions. 
Clocks , experiments upon them, p. 349. Why ufelefs as 
to fettling the different forces of gravity in different 
latitudes, p. 381. 
Cochineal Polilh, defcribed by Dodor Wolf, of Warfaw, 
p. 91. The Polifh Cochineal infed defcribed, 92. The 
method of dieing in Poland with that commodity, 93. 
How the colour thus given may be improved, 94. A 
further account of this material, 95. 
Coins antient Etrufcan two, obfervations upon them by 
the Rev. John Swinton, B. D. F. R. S. p. 99. Their 
antiquity how vifible, 100. The weight of one of 
them, 1 01. The weight of the other, 102. The 
form of the letters confidered, 103. The value of 
thefe Coins how determined, 104. Their antiquity ad- 
jufted, 105. 
Laodicean, p. 402. 
■ Phoenician, p. 136. 
Sicilian, p. 404. 
Siculo-Punic, p. 408. 
Cold , an unulual degree of, obferved in Bed ford fit ire, Ap. 
1 2, 1 764, by Mr. Howard, p. 1 18. 
Collinfon , Mr. F. R. S. his remarks on the Cicada of North 
America, p. 65. 
Comet , a table of the places of that which appeared in 
1764, as obferved at Paris by Mr. Ch. Mefner, Affro- 
nomer at the Depot, of the plans of the marine of 
France, p. 151. 
Comprejfibility , of water and other fluids, p. 261: Why 
not fuch as might be fuppofed, 262. 
Conic Sedions. See Sections Conic . 
4 
Conjugate , 
