2g6 MAG 
— Obfervations of the latitude, variation of the 
magnetic needle, and weather, made in a voy- 
age from London to Hud foil's Bay, 1735 
M iddUton 
The variation, of the magnetic needle as ob- 
served in three voyages from London to Mary- 
land - - Hoxton 
— — Some obfervations made during the laft three 
years of the quantity of the variation of the 
magnetic horizontal needle to the weftward 
Graham 
— — Letter concerning the variation of tlie magne- 
tic needle - - Wargentin 
An attempt to point out, in a eoncife man- 
ner, the advantages which will accrue from 
a periodic review of the variation of the mag- 
netic needle throughout the known world, ad- 
d refit* d to the Royal Society by William 
Mountaine and James Dodfon, and requeuing 
their contribution, thereto*, by communicating 
fuch obfervations concerning it as they have 
lately made and can procure from their corre- 
spondents in foreign parts Mountaine and 
Dodfon 
A letter concerning the variation of the magne- 
tic needle, with a fet of tables annexed, 
which exhibit the refult of upwards of fifty 
thoufand' obfervations in fix periodic reviews 
frofli 1700 to 1756 ; and are adapted to every 
five degrees of latitude and longitude in the 
more frequented oceans- Mountaine and Dodfon 
— An attempt to account for the regular diur 
nal variation of the horizontal magnetic 
needle; and alfo for i s irregular variation at 
the. time of an aurora borealis - Canton 
A letter containing fbme obfervations on the 
variation* of; the magnetic needle, made or 
board die Montagu man of War in 1,760^1761, 
1,762 - - - RoJ> 
— — * The variation' of the* compafs ; containing 
1 7 1 9 obfervations to, in, and from, die Eaft- 
Indies, Guinea, Weft- In dies, and Medi- 
terranean, with the latitudes and longitudes at 
the time of obl'eVvation - Dougla 
Track of his majefty’s armed brig Lion 
from England to Davis's Straights and La- 
Tranf. 
XXXIX 270 
XLI 1 7; 1 
XLV 279 
XLVII r26 
XLVIII 875 
E. 329 
LI 39$ 
LVI 216 
LXVI 1 8 
I 
i 
Abridg. 
VIII 376 
— 744 
X698 
1 
brador. 
