[sae J 
C. 
Cavallo, Mr. Tiberius. See Mercors. 
Cavendio, Henry, Efg. See dir.. Was the firft who difcovered that the combuftion of 
dephlogifticated and inflammable air produced moifture on the fides of the glafs vefftel 
| in which they were fired, p. 332. 
Chatodon Nigricans. See Anarrhichas ae. 
Cinchona. See Bark-Tree. 
Clap, Profeflor. See Meteors. 
Clufter of Stars. See Conftruction of the Heavens. 
Cole, Mr. See King’s Wells. 
Coma Berenices. See Conffruction of the Heavens. 
Comet, extract of a letter from Edward Pigott, Efq. containing the difcovery of one, p. 
20. Confufed notions of the ancients, and fome moderns, concerning them, p. 
20Ie 

Obfervations on that of 1783, p. 460. Table of obfervations from Nov. 19, 
to 26. and Dec. 23. ibid. Night-glafs ufed on this occafion defcribed, p. 461. 
Its different appearances at different times, p. 461. Table of obfervations made by 
Mr. John Goodricke, p. 462. Difcovered on Nov. 26. by M. de Mechain, ibid. 
Confirudiion of the Heavens, Account of fome Obfervations tending to inveftigate, by 
William Herfchel, Efgs p. 437. Conftruction of his lately completed telefcope, 
ibid. Reafons for confidering the heavens as an expanded firmament of three dimen- 
fions, p. 438. Effect of applying the telefcope toa part of the Via Lactea, ibid. 
Method of eftimating the number of the ftars feen, p. 439. Examination of the 
nebulz and clufters of ftars lately given in the Connoiflance des Temps for 1783 and 
1784, p- 439. Comparifon of different obfervations of Meff. Meffier and Mechain, 
with thofe of Mr. Herfchel, p. 441. Four hundred and fixty-fix new nebule and 
clufters of ftars difcovered, p. 442. Nebulz and clufters of ftars are arranged into 
ftrata, which feem to run on toa great length, ibid. Double and treble nebula, with 
others of various fhapes and lights, obferved, ibid. p. 443. Gaging the heavens 
explained, with its ufe, p. 445. Table extracted from the gages, by which it 
appears, that the number of ftars increafes very faft on approaching the milky way, 
p: 446. Conjectures concerning the motion of the folar fyitem, if the fun be placed 
in the great fidereal ftratum of the milky way, ibid. Circumftances attending the 
detecting of nebula, p. 448. Nebula of Cancer, part of a firatum, its fituation, pe 
449. Conjectures concerning the extent of the ftratum of Coma Berenices, 
ibid. 
Cooper, William, D. D. See Meteors. 
Copley, Sit Godfrey, his medals adjudged, p. viii. 
Cullum, Sir John, Bart. See Fro/. 
D, Davidjon, 
