4 INDEX. 



ylj>/>enJix to agronomical and mathematical papers, Vol. I, commencing 

 after p. ii6, to p. 72 of tliis appendix. 



y^« Mellifi.a, or honey-bee, whetlier a native of America? Vol. III. p. 

 241- 



Arch'iteSs erroneous in their conftruftion of fire places, Vol. IF. p. 10. 



Ardurus ftar, his great celerity of motion weftward, Vol. II. p. 224. 



Arfinic, an infallible tell for detefting its prefence, Vol. II. p. 214 — the 

 bafis of Martin's cancer-powder, ib. — its efficacy in ulcerous cafes, 215. 



Afia (eaftern fide of) like the fame latitudes in North America, Vol. I. 

 pnf. iii. 



y^/-(?now/Va/ and mathematical papers, Vol. I. from p. i. to 116, with an 

 appendix following. 



— — — calculations and corre(Stions of. Vol. I. p. 39, 102. 



— — inftruments ul'ed in obferving the tranfit of Venus at different 



placet in 1769, Vol. I. p. 10, 13, 97, 106, no, 114. 



obfervations. Vol. II. p. 260 — Vol. III. p. 150, 261 — Vol. 



IV. p. 21, 32, 67. 



Atmojphere, Venus furrounded by a denfe one. Vol. I. p. 49 — prodigious 

 height of the Cometarian, and its fuppofed ufes, appendix p. 35. 



confidered as to heat, Vol. I. p, 278 — more moid in England and 



France than America, Vol. II. p. 53 to 1$ — denfity of it, 96 — very 

 moid and denfe at the lakes, Vol. IV. p. 225 — and cha:-ged with hea- 

 vy but innoxious dews in interior America, ib. — queries as to its elec- 

 trical ftate. Vol. I. p. ICO — of Philadelphia, cxceQlve heat of in 1750, 

 with a curious faft from Dr. Franklin, 143 — component parts of, Vol. 

 IV. p. 266, 327, 417 — changes in peculiar to America, 217. 

 (■a. falubnous ) how compounded. Vol. IV. p. 128, 417. 

 at fea, the ftate of it. Vol. II. p. 90, 200 — experiments on it, 



Vol. IV. p. 262, 269, 272 — more pure than land air, 269. 



of marflies, experiments and obfervations. Vol. IV. p. 417. 



Atmofpheric heat counterafted by animate bodies. Vol. II. p. 143. 

 Atmofplierkal air, Prieftley's experiments and obfervations on the analyfis of. 



Vol. IV. p. I to II — ^whence compounded, 17 — 417, 424. See Air. 

 Allendant ftars, numbers of difcovered by Mayer, Vol. II. p. 222 — ufeful 



for determining the motion of fixed ftars, ib. 

 Attrition, why it caufes heat, Vol. I. appendix, p. 32. 

 Aurora Loreales, queries concerning. Vol. II. p 100 — an uncommon one, 



136 — always fucceeded by a fall of the barometer, and generally by 



rain, 142 — account of one. Vol. III. p. 62. 



. obfervations on, Vol. II. p. 196. 



Axis of the earth, how to calculate its nutation, Vol. IV. p. 51. 



}li.o!e, or phlogifticated air, proportion between it and oxygen, as dated by 



fome. Vol. IV. p. i — not a fimple fubftance — experiments and obfer- 

 vations on, ib. p. 7, II and 382. 

 — — , or nitrogen gas, what proportion of it in the atmofphere. Vol. IV. 



p. 128, 417. 

 Azotic gas, a component part of the atmofphere, VoL IV. p. 266, 417. 



Baileif 



