The Popular Science Review: A Quarterly Miscellany of Entertaining and Instructive Articles on Scientific Subjects, Volume 12James Samuelson, Henry Lawson, William Sweetland Dallas Robert Hardwicke, 1873 - Science |
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Page 14
... known popularly as fire - damp , to be followed , should any one of a series of delicate precautions go wrong , by an explosion , which will first burn and shatter whatever comes in its way , and then leave behind it a deadly vapour ...
... known popularly as fire - damp , to be followed , should any one of a series of delicate precautions go wrong , by an explosion , which will first burn and shatter whatever comes in its way , and then leave behind it a deadly vapour ...
Page 15
... known to miners , produced in the flame of a candle or lamp held in it . The maximum of ex- plosiveness is reached when the proportion of gas is from th to 4th if a light be brought into such a mixture , the whole flashes into flame ...
... known to miners , produced in the flame of a candle or lamp held in it . The maximum of ex- plosiveness is reached when the proportion of gas is from th to 4th if a light be brought into such a mixture , the whole flashes into flame ...
Page 16
... known among the colliers as " black - damp , " or " after - damp . " We must also note that carburetted hydrogen is very light , not much more than one - half as heavy as common air , and in spite of the general property of gases to ...
... known among the colliers as " black - damp , " or " after - damp . " We must also note that carburetted hydrogen is very light , not much more than one - half as heavy as common air , and in spite of the general property of gases to ...
Page 17
... known as the " downcast " shaft , pure air is constantly passing , and is conducted through the workings , driving before it the contaminated atmosphere , and in the end forcing it up the other shaft , which serves for an outlet , and ...
... known as the " downcast " shaft , pure air is constantly passing , and is conducted through the workings , driving before it the contaminated atmosphere , and in the end forcing it up the other shaft , which serves for an outlet , and ...
Page 18
... known as a " dumb drift , " which opens into the up- cast some way above the furnace : even this precaution , how- ever , is thought to have been ineffectual in some very fiery mines , and good authorities have given it as their opinion ...
... known as a " dumb drift , " which opens into the up- cast some way above the furnace : even this precaution , how- ever , is thought to have been ineffectual in some very fiery mines , and good authorities have given it as their opinion ...
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acid American animals anthers apparatus appears Arctocebus arranged Astronomer Astronomer Royal atmosphere Biela's birds body bones carbon carbonic acid cause character Chemical Chimpanzee chlorophyll Cirripedes coal colour comet compared contains Crustacean described diameter Elapida electric existence experiments explosion fact feet flowers fossil fuze genus geological Gibbons gives Gorilla gun-cotton Halley's method heat illustrated inches insects instance interesting Journal Jupiter known latisternal apes Lemur length less light maps matter maxillæ means meteors Microscopical mode Monkeys motion nature nearly object observed obtained Orang orbit ordinary organs paper parasites pass pistil plants plates Pleistocene pollen portion present produced Professor recent remarkable resemblance rocks Royal says scientific seen ship snakes Society species specimens Spider Monkeys stamens structure surface telescope tion torpedoes venomous snakes vessel volume wire XII.-NO