 | 1855 - 424 páginas
...an open fire sufficed to maintain the desired temperature. The author then proceeded to observe that if fresh coal, instead of being placed on the top of a fire, where it must unavoidably emit visible pitchy vapor or smoke, be introduced beneath the burning red-hot coal,... | |
 | 1854 - 662 páginas
...of ignited coal near the surface, it suddenly becomes in great part gas, and itself burns as flame. This is the phenomenon seen in the flickering and...its pitch, in rising as vapour, must pass among the paru of the burning mass, it will be partly resolved into the inflammable coal gas, and will itself... | |
 | Perry Fairfax Nursey - 1854 - 616 páginas
...of ignited coal near the surface, it suddenly becomes in great part gas, and itself burns as flame. This is the phenomenon seen in the flickering and...be introduced beneath the burning, red-hot coal, so thai its pitch, in rising as vapour, must pass among the parts of the burning mass, it will be partly... | |
 | 1855 - 624 páginas
...of ignited coal near the surface, it suddenly becomes in ^reat part gas, and itself burns as flame. This is the phenomenon seen in the flickering and...unavoidably must emit visible pitchy vapour or smoke, be introdnced beneath the burning, red-hot coal, so that its pitch, in rising as vapour, must pass among... | |
 | 1855 - 424 páginas
...coal, instead of being placed on the top of a fire, where it must unavoidably emit visible pitchy vapor or smoke, be introduced beneath the burning red-hot coal, so that its pitch in rising as vapor must pass among the parts of the burning mass, it would be partly resolved into the inflammable... | |
 | 1855 - 424 páginas
...an open fire sufficed to maintain the desired temperature. The author then proceeded to observe that if fresh coal, instead of being placed on the top of a fire, where it must unavoidably emit visible pitchy vapor or smoke, be introduced beneath the burning red-hot coal,... | |
 | 1855 - 334 páginas
...open fire sufficed to maintain the desired temperature. The author then proceeded to observe, that if fresh coal, instead of being placed on the top of a fire, where it must unavoidably emit visible pitchy vapour or smoke, be introduced beneath the burning red-hot coal,... | |
 | 1855 - 424 páginas
...an open fire sufficed to maintain the desired temperature. The author then proceeded to observe that if fresh coal, instead of being placed on the top of a fire, where it must unavoidably emit visible pitchy vapor or smoke, be introduced beneath the burning red-hot coal,... | |
 | Charles W. Vincent, James Mason - 1855 - 314 páginas
...open fire sufficed to maintain the desired temperature. The author then proceeded to observe, that if fresh coal, instead of being placed on the top of a fire, where it must unavoidably emit visible pitchy vapour or smoke, be introduced beneath the burning red-hot coal,... | |
 | 1856 - 424 páginas
...of ignited coal near the surface, it suddenly becomes in great part gas, and itself burns as flame. This is the phenomenon seen in the flickering and...fire, where it unavoidably must emit visible pitchy vapor or smoke, be intro dnced beneath the burning red hot coal, so that its pitch, in rising as Taper,... | |
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This is the phenomenon seen in the flickering and burning which takes place on the top of a common fire. But if fresh coal, instead of being placed on the top of a fire, where it unavoidably must emit visible pitchy vapour or smoke, be introduced beneath... 
