HEI HEL 
l 
Of the different quantities of rain which appear 
to fail, at different heights, over the fame fpot 
of ground - - IV, Heberden 
— ■ — A letter giving an account of fome experiments 
made in North Wales, to afcertain the different 
quantities of rain, which fell at the fame time, 
at different heights - Barrington 
Heights (meafured by the barometer). A difcourfe 
of the rule of the decreafe of the height of the 
mercury in the barometer, according as places 
are elevated above the furface of the earth; 
with an attempt to difcovcr the true realon of 
the riling and falling of the mercury upon 
change of weather - Halley 
A profpect of the weather, winds, and height of 
the mercury in the barometer, on the firft day 
of the month, and of the whole rain in every 
month, in 1703 and beginning of 1704, at 
Townley, in Lancafhire, by R , Townley; and 
at Upminfter by -IV, Derham 
— A propofal for meafuring heights of places by 
help of the barometer of Mr. Patrick, in which 
the fcale is greatly enlarged - - Halley 
— Obfervations concerning the height of the baro- 
meter, at different elevations above the furface 
of the earth - Nettleton 
— Experiments and obfervations made in Britain, 
in order to obtain a rule for meafuring heights 
with the barometer - - Roy 
Helena (St.) A letter recommending to nuke at 
St. Helena a feries of obfervations for difco- 
vering the parallax of the moon Dela Caille 
• A letter concerning obfervations to be 
made on the parallax of the moon at St. Helena, 
and recommending the fame to be made at Paris 
and Greenwich, to fettle the longitude between 
Paris and St. Helena - - Majkelyne 
Helsingland. An explanation of the Runic charac- 
ters of - Celfius 
Helmont. See haudamm . 
•Helvetia. Letter concerning the icy and cryfl-alline 
mountain of Helvetia, called the Gietfcher 
----- Muraltus 
*»- - — A farther defcription and reprefentation of the 
icy mountain called the Gietfcher, in the can- 
ton of Berne, in Helvetia - - JuJlel 
Tranf. 
LIX 359 
LXI 294 
XVI 104 
XXIV 1877 
XXXI 1 16 
XXXIII 308 
LX VII 633 
LII 21 
• — 26 
XL 7 
IV 982 
VIII 6191 
22 
Abridg. 
II 14 
t 
VI 2 28 
VI 2 44 
I 
IX 438 
II 465 
F f 2 
Hem 
