44 2 -M. de Luc’s Barometrical Obfervations on 
In. 
At 1 2 h. in the val- 
ley of Bremeke, half a ^ 
toife lower than a cer- 
tain determined point, 
At Alte Seegen, two"! 
hours after the firft j” 
obfervation, — J 
27 
27 
L. 1 6th of Lines. Log* 
3 2 = 5234 37188,357 
7 0 = 5104 37079,107 
Difference, — —— 109,230 
Heat of the air -30, confequently to deduct 6,554 
102,676 
Dedudl the half toife above mentioned, — 500 
French toifes, — - 102,176 
At 
P. L. i6deLig. Log* 
A midi, dans la vallee de Bremeke, £ toife 1 __ . . QQ _ 
|>lus bas qu’un certain point determine, J 2 7 3 2 — 5 2 34 37 1 > 3 37 
S “ E “’ -■ ‘ P “ “ » b - j 26 , 0 = 5104 37079,10, 
Difference, — — 109,230 
■Chaleur de Pair —30; done T fl^ a deduire, ~ — 6*554 
A deduire la demi toife ci-deffus, 
Toifes de France, 
102,676 
, 5 °° 
102,176 
A if h* 
