PL A 
Pl anets, On the method of determining the places 
of the planets by obferving their near appulfes 
to the fixed ftars » Halley 
■ — - An inquiry concerning the figure of fuch pla- 
nets as revolve about an axis, ^uppofing the 
denfity continually to vary from the centre 
towards the furface - Clairaut 
- — A new and peculiar method of calculating 
eclipfes of the earth, and of any appulfes of 
the moon to planets and fixed ftars Gerjlen 
— - Letter concerning the contraction of the orbits 
of the planets - - Euler 
— A treatife on the precefiion of the equinoxes, 
and, in general, on the motion of the nodes, 
and the alteration of the inclination of the 
orbit of a planet to the ecliptic - Silvabellt 
- Of the irregularities in the planetary motions, 
caufed by the mutual attraction of the planets 
IV alrnftey 
— — See particular Planets in their Places 
Plants. An experiment on aloe Americana ferrati- 
folia weighed ; Teeming to import a circula- 
tion of the fap in plants - Msrrel 
■ — Obfervations concerning quickfilver found at 
the root of plants - - Septaliu > 
- — An account of fome rare plants in the Bermudas 
Stafford 
Inftances (hewing the correfpondence of the pith 
and timber, with the feeds of the plant ; as 
alfo of the bark, with the pulp of the fruit, or 
fome encompaffing coat or cod containing the 
feed - Beal 
*»»— Some communications cn the defeent of fap 
Reed 
Some coniiderations on Mr. Reed’s letter, 
(hewing in what fenfe the fap may be faid to 
defeend and to circulate in plants, and the 
graft to communicate with the flock Beal 
— An ingenious account of ve ns by him obferved 
in plants, analogous to human veins Lifter 
— A further account concerning the exiftence of 
veins in all kind of plants ; together with a 
difeovery of the membranous fubftance of thofe 
veins, and of fome aCls in plants refembiing 
thofe of fenfe \ and alfo of the agreement of 
335 
Tranf. 
Abridg. 
XXXI 209 
VI 170 
XL 277 
VIII 90 
XLI 1 I 22 
x 55 
XLVI 356 
— 142 
XLvxir 385 
LII 275 
-i 
II 455 
II 645 
H 493 
II 425 
III 792 
III 561 
IV 919 
7IC* 
— 6 55 
— 687 
VI 2128 
— 690 
— 2144 
— 653 
— 655 
— > 690 
— 3032 
— 691 
C c c 2 
the 
