 | British Association for the Advancement of Science - 1845 - 718 pagina’s
...corrections having been made to reduce them all to the same standard. These mines are in lat. 52° 8' north, and the mean annual temperature at the surface calculated...general average of the thermometers at the depth of 774< feet, and the maxima and minima, were as follows : — Average. Maximum. Minimum. In air 57-176... | |
 | William Jory Henwood - 1871 - 294 pagina’s
...the rock, and another into the lode at a depth of [129 fathoms] from the surface. A thermometer * * * was hung in the gallery or level where these were...at the depth of [129 fathoms], and the maxima and minima, were as follows : — о о о In air Average, 57-176 . . Maximum, 58-5 . . Minimum, 56-25... | |
 | William Jory Henwood - 1871 - 312 pagina’s
...the rock, and another into the lode at a depth of [129 fathoms] from the surface. A thermometer * * * was hung in the gallery or level where these were...at the depth of [129 fathoms], and the maxima and minima, were as follows : — 0 0 O In air Average, 5 7' 176 .. Maximum, 58-5 .. Minimum, 56 '25 „... | |
 | Royal Geological Society of Cornwall - 1871 - 346 pagina’s
...the rock, and another into the lode at a depth of [129 fathoms] from the surface. A thermometer * * * was hung in the gallery or level where these were...at the depth of [129 fathoms], and the maxima and minima, were as follows : — oo O In air Average, 57' 176 .. Maximum, 58-5 .. Minimum, 56-25 „ rock... | |
 | British Association for the Advancement of Science. Meeting - 1845 - 712 pagina’s
...corrections having been made to reduce them all to the same standard. These mines are in lat. 52° 8' north, and the mean annual temperature at the surface calculated...general average of the thermometers at the depth of 774 feet, and the maxima and minima, were as follows : — Average. Maximum. Minimum. In air 57'176... | |
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The Bearhaven mines are opened in rocks, of the * " Thermometers were placed, in August 1843, in the deepest part of Knockmahon Copper Mine; * * * one being sunk three feet into the rock, and another into the lode at a depth of [129 fathoms] from the... 