 | John Timbs - 1857 - Liczba stron: 444
...sufficient to make a ring of blue flame ; the glasses being then put on quite straight, the stopcocks are gently turned, until the flames stand at three...high. When this is done, few chimney-glasses will bo broken, and the ceilings will not be blackened for years. — SIB Jons ROBISON. KEEPING TEA. It... | |
 | Freeman Hunt, Thomas Prentice Kettell, William Buck Dana - 1860 - Liczba stron: 836
...sufficient to make a ring of blue flame ; the glasses being then put on quite straight, the stop-cocks are gently turned, until the flames stand at three...and the ceilings will not be blackened for years. LEVELS OF THE ATLANTIC AND PACIFIC OCEANS. The popular notion which had so long prevailed that the... | |
 | 1860 - Liczba stron: 788
...blue flame ; the glasses being then put on quite straight, the stop-cocks are gently turned, until thu flames stand at three inches high. When this is done,...and the ceilings will not be blackened for years. LEVELS OF THE ATLANTIC AND PACIFIC OCEANS. The popular notion which had so long prevailed that the... | |
 | 1860 - Liczba stron: 782
...sufficient to make a ring of blue flame ; the glasses being then put on quite straight, the stop-cocks are gently turned, until the flames stand at three inches high. When this is doue, few chimney-glasses will be broken, and the cellingi will not bo blackened for years. LEVELS... | |
 | 1861 - Liczba stron: 338
...sufficient to make a ring of blue flame : the glasses being then put on quite straight, the stop-cocks are gently turned, until the flames stand at three...and the ceilings will not be blackened for years. — Sir John Robison. DISCOVERY OF OIL IN WESTERN NEW YORK. A NEW product is in course of development... | |
 | 1862 - Liczba stron: 476
...than is sufficient to make a blue flame; the glasses being then put on quite straight, the stop-cocks are gently turned, until the flames stand at three...localities. The first operation he proposes should bo carried on in the immediate vicinity of the mines, where coal is cheap, labor plentiful, and an... | |
 | 1862 - Liczba stron: 446
...chimney-glasses will be broken, and t ceilings will not be blackened for years. IMPROVEMENTS IS THE MANUFACTUEE OF GAS. Mr. Leslie, a well-known gas engineer of London,...localities. The first operation he proposes should be carried on in the immediate vicinity of the mines; where coal is cheap, labor plentiful, and an... | |
 | 1862 - Liczba stron: 448
...than is sufficient to make a blue flame ; the glasses being then put on quite straight, the stop-cocks are gently turned, until the flames stand at three...will not be blackened for years. IMPROVEMENTS IN THE MANUFACTUBE OF GAS. Mr. Leslie, a well-known gas engineer of London, proposes to economize the process... | |
 | 1862 - Liczba stron: 448
...than is sufficient to make a blue flame ; the glasses being then put on quite straight, the stop-cocks are gently turned, until the flames stand at three...and the ceilings will not be blackened for years. IHPEOVEMENTS IN THE MAKTJFACTURE OF GAS. Mr. Leslie, a well-known gas engineer of London, proposes... | |
 | David Ames Wells - 1863 - Liczba stron: 470
...sufficient to make a ring of blue flame ; the glasses being then put on quite straight, the stopeocks arc gently turned, until the flames stand at three inches...high. When this is done, few chimney-glasses will bo broken, and the ceilings will not be blackened for years. — SIR JOKS RORISON. KEEPING TEA. It... | |
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... the glasses are taken off and wiped every day, and before they are put on again, the match is applied to the lip of the burner, and the stopcock cautiously opened, so that no more gas escapes than is sufficient to make a ring of blue flame, the glasses... 
