A L G 
ALU, 
gebra in the refolution of the problem oh find- 
ing the foci of optick-glaftes univerfally Halley 
A iecond letter concerning the roots of equa- 
tions,. with the demonltration of other rules 
in algebra - - Maclawir. 
=-!— An algebraic problem, and of the evolution of a 
certain mechanic curve amongff infinite hyper- 
mechanicai ones, which refolve a certain.equa- 
tion (Lat.) - - Fantom 
Obfervations on the limits of algebraical equa- 
tions ; and a general demonftration of Des 
Cartes’s rule for finding their number of affir- 
mative ana negative roots - Milnei 
— — — On the general refolution of algebrai- 
cal equations - fVaring 
T f - ■ — See Equations* 
— See Opticks. 
Alhazen. Letters between M. Slufius and M. Hu- 
genius relative to an optic problem of Al- 
hazen, - 
Alicant. See Soap . 
Aliment. An account of the bones of animals being 
changed to a red colour by aliment only Belchier 
— — • A further account of the bones of animals being 
made red by aliment only - BelcHei 
Allantois. The humane allantois fully difcovered, 
and the rcafons afiigned why it has not hitherto 
been found out, even by thofe who believed its 
exiftence ; with an anfwer to their obje&ions 
who deny it (till - Hale 
Alligator. An account of the foffile bones of an 
alligator, found on the fea-fhore near Whitby 
in Yorkihire - Chapman 
— * — Another account of the fame - Woollei 
Aloe Americana Serr ati-folia. An experiment 
on Aloe Americana Serrati-folia weighed, teem- 
ing to import a circulation of the lap in plants 
- M err et 
Alum. A defcription of a Swedifh ftone, which af- 
fords fulphur, vitriol, allum, and minium Talbot 
■■ A continuation of the difcourfe concerning vi- 
triol, (hewing, that vitriol is ufually produced 
by fulphur, a&ing on, and coagulating with, a 
metal ; and then making out, that alum is 
likevvife the refult of the faid fulphur •, as alfo 
evincing, that vitriol, fulphur, and alum, do 
agree in the faline principles : and, lafily, de- 
Tranf. 
*5 
Abridg. 
XV 1 T 960 
I 183 
XXXVI 59 
VI 2 5 
LVII 358 
: 
r, xvii 1 380 
LXIX 86 
VIII 6129 
— 6139 
I 172 
— 174 
XXXIX 287 
IX 102 
— 299 
~ 103 
XXII 835 
V 314 
L 688 
— 786 
n 455 
— 64s 
1 375 
II 531 
clarin<* 
0 
