... Transactions, Volum 1

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PÓgina 7 - It is better, on this account, in graduating the bottle, to make two scratches as represented in the drawing, one at the top and the other at the bottom of the curve : this prevents any future mistake.
PÓgina 2 - ... power to decide on the propriety of communicating to the Institute any papers which may be received, and they shall be at liberty, when they think it desirable, to direct that any paper read before the Institute, shall be printed in the Transactions. Intimation, when practicable, shall be given, at...
PÓgina 25 - Whether it be the one or the other, or a combination of both, or a partial vacuum, created by the rapid expansion of the steam, into which the air rushes, and in which manner it is carried along with it, and also, probably, that property of steam to mix with the air, I shall not here or at this time enter further upon, but shall proceed to the investigation of the mechanica Ipower given out or produced by such jets.
PÓgina 3 - That any system of ventilation depending on complicate machinery is undesirable, since under any disarrangement or fracture of its parts the ventilation is stopped or becomes inefficient. " That the two systems which alone can be considered as rival powers are the furnace and steam jet. " Your Committee are unanimously of opinion that the steam jet is the most powerful and at the same time least expensive method for the ventilation of mines.
PÓgina 2 - In reasoning upon these various phenomena it occurred to me, as a considerable heat was required for the inflammation of the fire-damp, and as it produced in burning comparatively a small degree of heat, that the effect of carbonic acid and azote, and of the surfaces of small tubes in preventing its explosion, depended upon their cooling powers; upon their lowering the temperature of the exploding mixture so much that it was no longer sufficient for its continuous inflammation.
PÓgina 16 - Tredgold, in the work above alluded to, assumes the weight of a cubic foot of air at the temperature of 60░, barometer 30 inches, at 527 grains troy, taken from Dr.
PÓgina 1 - September, unless otherwise determined by the Council ; and the ordinary general meeting in the month of September shall be the annual general meeting at which a report of the proceedings, and an abstract of the accounts of the previous year ending July 31st, shall be presented by the Council. The ordinary general meeting in the month of May shall be held in London, at which the President may deliver an address.
PÓgina 6 - Before proceeding further, it may be well to correct a misapprehension which appears to exist in the minds of...
PÓgina 7 - Experiments on the relative value of the furnace and the steam jet, in the ventilation of coal mines, communicated to the North of England Institute of Mining Engineers.
PÓgina 2 - The Council shall have power to decide on the propriety of communicating to the Institute any papers which may be received, and they shall be at liberty, when they think it desirable, to direct that any paper read before the Institute, shall be printed in the Transactions. Intimation, when practicable, shall...

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