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Boeken Boek 1 - 7 van 7 over The reasons for this preference are ; — that the temperature of the air in mines....
" The reasons for this preference are ; — that the temperature of the air in mines is affected, not only by the presence of the workmen, the combustion of candles, and the explosion of gunpowder, but also by the warm or cold air which is brought to the... "
Transactions of the Royal Geological Society of Cornwall - Pagina 721
1871
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Transactions of the Royal Geological Society of Cornwall, Volume 5

1843
...many opportunities for observations on subterranean temperature, of which I always availed myself. After most careful consideration of the subject, and...and, that the water flowing through, or standing in pools, in the levels, is exposed to the same modifying causes, and probably, also, warmed by the workmen...
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The Edinburgh New Philosophical Journal, Volume 34

1843
...portions of the rocks and veins. The reasons for this preference are : — That the temperature of the Uir in mines is affected, not only by the presence of...and, that the water flowing through, or standing in pools, in the levels, is exposed to the same modifying causes, and probably, also, warmed by the workmen...
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Transactions of the Royal Geological Society of Cornwall, Volume 8,Deel 2

1871
...coming from the roofs of galleries, or evidently proceeding from higher parts of the mines." — Fox, Cornwall Geol. Trans., in. p. 320. " After most careful...and that the water flowing through, or standing in pools in the levels, is exposed to the same modifying causes, and probably also, warmed by the workmen...
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Henwood's Observations on Metalliferous Deposits, Deel 2

William Jory Henwood - 1871
...galleries, or evidently proceeding from, higher parts of the mines." — Fox, Cornwall Geol. Tram., mp 320. " After most careful consideration of the subject,...and that the water flowing through, or standing in pools in the levels, is exposed to the same modifying causes, and probably also, warmed by the workmen...
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Observations on Metalliferous Deposits, and on Subterranean Temperature ...

William Jory Henwood - 1871
...rocks and veins. The reasons for this preference are ; — that the temperature of the air in minee is affected, not only by the presence of the workmen,...and that the water flowing through, or standing in pools in the levels, is exposed to the same modifying causes, and probably also, wanned by the workmen...
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Proceedings of the Royal Society of London, Volume 41

Royal Society (Great Britain) - 1887
...Henwood gives as his reason for preferring springs, — that the rocks forming the sides of the shaft and levels must, to a certain extent, partake of the...temperature of the air circulating through them, and that this air could not escape the influence of heat-producing causes at one time, and at another of...
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Collected Papers on Some Controverted Questions of Geology

Joseph Prestwich - 1895 - 279 pagina’s
...Kenwood gives as his reason for preferring springs — that the rocks forming the sides of the shaft and levels must, to a certain extent, partake of the...temperature of the air circulating through them, and that this air could not escape the influence of heat-producing causes at one time, and at another of...
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