504 INDEX. 
Be La Lande , Mr. has given a demon ftration of Mr. 
Cotes’s as a new one, p. 230. Cenfures M. Bouguer, 
p. 252. 
Be Luc , M. his miftake concerning the equation for the 
temperature of the quickfiiver in the meafurement of 
heights by the barometer, p. 164, 237. Whence it 
arofe, p. 239. 
Bes Cartes, why cenfured by Sir Ifaac Newton, p. 154. 
Biaphragm. Vide Birds. 
Bobfcn , Dr. on the petrifying quality of Matlock waters, 
p. 291. 
Dying black. Vide Black, Lime-water, and Pct-afrj, 
Byfenteries, unknown in Chefter, p. 73. 
E. 
Earth, martial and abforbent, the medium by which the 
mephitic air of the Pouhon water is united to the watery 
element, p. 362. 
Earth, a fpecies of aluminous, found, in great quantities, 
in a colliery near Whitehaven, p. 490. 
Eajlham, ftate of population there, duration of life, &c. 
,p. 61. Comparative furvey of Eaftham and Roy ton, 
.p. 6 2, 63. 
Eclipfe of the Sun, obferved at Pekin, p. 37. Beginning 
and end of an eclipfe of the Moon, at Pekin, p. 39, 
Total of the Moon at Pekin, p. 43, 45. Of the 
Moon, at Canton, p. 47. Of Jupiter’s fatellites, near 
Quebec, p. 176. Of ditto, i8r. Of Jupiter’s firffc 
fatellice, at the Royal Obfervatory at Greenwich, com- 
, pared with obfervations of fundry places in North 
America, p. 184 — 193. Of Jupiter’s fatellites, at 
Chiflehurft, p. 334. Trials of Mr. Bailly’s method 
of obferving the eclipfes of the fatellites, ibid. 
ElaJUcity, absolute, of the particles of the air, 
what, p. 246. Often different in different parts of 
the atmofphere, p. 251 — 255. Probable connexion 
between elafticity and heat, p. 267. 
Elec* 
