iz 
A I R 
A LG 
faces in common water, beipg of an equal 
weight in common air - Haukfhet 
Air (RefraCtiors of the). An experiment of the 
refraction of the air, made at the command of 
the Royal Society - Lowtborp 
— - Some allowances to be made in aftronomical ob- 
fervations for the refraction of the air, with an 
accurate table of refractions - Halley 
Air-Pump. An account of fome improvements in the 
air-pump - Smeaton 
* — rr — An account of fome experiments made with 
an air-pump on Mr. Smeaton’s principle; toge- 
ther with fome experiments With a common 
air-pump - - Nairn *■ 
AlbaTenius. Emendations and notes upon the anti- 
ent aftronomical tables of Albatenius, with the 
defloration of his luni-folar tables Halley 
Alcali. Two letters, giving an account of a red 
colour produced by mixture of a fulphureous 
fpiric with a volatile alcali - Gibbon , 
Alc aline Salts. A diiPertation on fixed alcaline 
falts - - Neuman 
— — Continued - Neuma>. 
- A chemical experiment of the effeCt of quick- 
lime upon volatile alcaline - ScbloJJlr 
— - — Experiments on the diftill ation of acids, vo- 
latile alkalies, &c. fliewing how they ma] 
be condenfed without lofs, and how thereby to 
avoid difagreeable and noxious fumes IVoulfe 
-t See Salt . 
Alcanna. Concerning rufma and alcanna 
Phil . Soc . Oxf. 
Aldebaran. An obfervation of the moon’s tranlit 
by Aldebaran, Apr. 3 , 1736 - Bevis 
* An occultation of Aldebaran by the Moon, Dec. 
12 , 1738 - - Graham 
Aleppo. A relation of a voyage from Aleppo to Pal- 
myra in Syria - Hallifax 
Alga. Obfervations on the fea alga with broad leaves 
- - PeyJJonel 
Algebra. Thoughts about fome defe.Cts in algebra 
- - Collins 
A treatife of algebra, both hiftorical and practi- 
cal - - Wallis 
■ A correction of the 109th chapter of Wallis’s 
algebra - - Wallis 
■*** ■ —■ An in fiance of the excellence of the modern al- 
Tranf. 
— 306 
XXI 339 
XXXI 169 
XLVH4I5 
LXVII 614 
XVII 913 
XIX 54 2 
XXXIV 3 
— 45 
XLIX 222 
LVII 51 7 
XX 295 
XL 90 
XLI 632 
XIX 83 
L 631 
Xiv 575 
XV 1095 
XIX 729 
Abridg. 
181 
I 228 
VI 167 * 
III 522 
— 367 
VII 700 
— 717 
II 645 
VIII 133 
— 135 
III 503 
gebra 
