42 
ATT 
A U R 
caufed by the mutual attraCUon of the planets 
Tranf. 
Abridg. 
- - Walmefley 
— — A propofal for meafuring the attraClion of fome 
hills in this kingdom by agronomical obferva- 
LII 275 
tions - - Majkelyne 
• An account of obfervations made on the mountain 
LXV 495 
Schehallien for finding its attraction Majkelyne 
On the preceffion of the equinoxes produced by 
— 5 00 
the fun’s attraction - Milner 
« — — Calculations to determine at what point in the 
fide of a hill its attraction will be the greateff 
LXIX 505 
- - - - button 
Attrition. Several experiments on the attrition of 
LXX i 
IV 2 18c 
bodies in vacuo - Haukfbee 
— — - An account of an experiment touching the ex- 
traordinary eleCtricity of glafs produceable on 
a fmart attrition of it; with a continuation of 
experiments on the fame fubjeCi, and other 
XXIV 2165 
phenomena - - Haukfbee 
XXV 2327 
— - — 
- Haukfbee 
— 2332 
! 
Several experiments (hewing the flrange efFeCts 
of the effluvia of glafs, produceable on the' 
: 
motion and attrition of it - Haukfbee 
— — An account of fome experiments touching the 
eleCtricity and light produceable in the attrition 
— 2372 
of feveral bodies - Haukfbee 
~ An account of an experiment (hewing, that an 
obJeCt may become vifible through fuch an 
opake body as pitch in the dark, while it is 
under the circumftances of attrition and a va- 
XXVI 87 
cuum - v - Haukfbee 
— 392 
— - — 
Aurora Australis. An account of an Aurora 
Auitraiis obferved at Rome Jan. 27, 1740. 
VIII 554 
(Lat.) - - Rev ilia s 
— An obfervation of the lights feen in the 
air, an Aurora Aultralis, March 18, 1738-9, 
XLI 744 
at London - - Mortimer 
— 839 
— 553 
Another account of - Ma r tyn 
— 840 
— 552 
Another obfervation of, at Peterborough Neve 
- Seen at Chelfea January 23, 1749-30 
— 843 
— 554 
- Martyn 
Aurora Borealis. An account of two late nor- 
thern Aurora’s, obferved at Sutton, and Hone 
in Kent, on Feb. 5, 1716-7, and March 30, 
XLVI 319 
X488 
171b - - Barrel / 
An account of that feen 30th of March at 
XXX 584 
IV 2 153 
London - - Folkei 
>1 — 586 
- - T 54 
7 
- — - An 
