Nature, Volume 33Nature Publishing Group, 1885 |
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Página 140
... fire - damp in air has become specially evident , since the fact has become thoroughly established , by recent careful and comprehensive investigation , that when fire - damp is present in the atmosphere of a mine , in proportions ...
... fire - damp in air has become specially evident , since the fact has become thoroughly established , by recent careful and comprehensive investigation , that when fire - damp is present in the atmosphere of a mine , in proportions ...
Página 198
... fire - damp were known to exist ; for it is only necessary to suppose that a violent gust of wind ( originated , for example , by the explosion of a small accumula- tion of fire - damp ) had swept through the adjoining galleries ...
... fire - damp were known to exist ; for it is only necessary to suppose that a violent gust of wind ( originated , for example , by the explosion of a small accumula- tion of fire - damp ) had swept through the adjoining galleries ...
Página 570
... fire - damp is liable to have access to the mine - workings , shot - firing may be safely carried on , pro- vided that any one of the " high or violent explosives is employed , in one or other of the modes described , in substitution ...
... fire - damp is liable to have access to the mine - workings , shot - firing may be safely carried on , pro- vided that any one of the " high or violent explosives is employed , in one or other of the modes described , in substitution ...
Índice
Anemometry Prof Neesen | 95 |
Annalen der Physik und Chemie 356 523 | 126 |
Antedon phalangium P H Carpenter on Variations of Cirri | 165 |
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