444 Mr. Fox on the Temperature of Mines. [Dec. 
water in the undermentioned mines, at different levels; and, as 
far as it was ascertained, of the air also at the same stations, in 
order to show the relative temperature of both, and the ratio in 
which it increased in depth, without particularising the mines 
in which the experiments were respectively made, as this appears 
to be unnecessary. " By WR Neil is OF 
The mines referred. to were South Huel Towan, East Liscomb, 
Huel Unity Wood, Beer Alston, Poldice, the Consolidated 
Minas, Huel Friendship, the United Mines, Treskerby, Huel 
Damsel, Ting Tang, and likewise Huel Maid, Nangiles, North 
Huel Virgin, and Tresavean. The four last mentioned mines 
having been partly full of water for many years, the figures 
which refer to them are distinguished by an asterisk. | 
3 é 28 
a 2a = Ee 
ov, o g — 
g 2 | & 23 Degrees of temperature. 
Ast 4.8 BES 
a2 188 | 323 
ee | Bad oO 8 
a A = 
Water. 
60 10 Air. 
Water. 
3120 20 Air. 
Water. 
180 30 Air. 
| Water. 54 *54. 956. *56 8 *60 
240 40 Air. BD) EOD) sulting *60 
Water 60 60 ‘ 
300 50 Air. 58 58 
Water. 60 58 . .*58 
360 60 Air. 60 *5T 
Water. “535 
420 10 Air, ¥*59 
Water, 62 *59 
A480 80 Air. 64 
Water. 
540 90 Air. 
Water *60 
600 | 100 | Air. *56 
Water, 64 
660 110 Air, 
Water. 
. 720 120 Air. 
Water. 14 74 63 72 68 *60 
780 130 Air. 4 62 13 70 4 864*58 
Water. 80 72 
840 140 Air. 8l 15 
Water. 
900 150 Air. 
Water. 
960 160 Air. 
Water. 84 
1020 170 Air. } 
mi 86 87 
1080 180 ir. 88 
