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Boeken Boek 1 - 5 van 5 over The Bearhaven mines are opened in rocks, of the * " Thermometers were placed, in....
" 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... "
Transactions of the Royal Geological Society of Cornwall - Pagina 738
1871
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Report of the Annual Meeting

British Association for the Advancement of Science - 1845
...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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Observations on Metalliferous Deposits, and on Subterranean Temperature ...

William Jory Henwood - 1871
...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...
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Henwood's Observations on Metalliferous Deposits, Deel 2

William Jory Henwood - 1871
...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 „...
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Transactions of the Royal Geological Society of Cornwall, Volume 8,Deel 2

1871
...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...
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Report of the Annual Meeting, Volume 14

1845
...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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