Nature, Količina 86Sir Norman Lockyer Macmillan Journals Limited, 1911 |
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Zadetki 1–3 od 8
Stran 224
... firedamp in the air by means of the firedamp cap ( for this see Proc . Roy . Soc . , vol . xxiv . , pp . 361 to 367 ) , they have produced an excellent lamp for the purpose ; and that their appliances and regulations for dealing with ...
... firedamp in the air by means of the firedamp cap ( for this see Proc . Roy . Soc . , vol . xxiv . , pp . 361 to 367 ) , they have produced an excellent lamp for the purpose ; and that their appliances and regulations for dealing with ...
Stran 225
... firedamp and air , or of raising and igniting coal dust in the interior of the gallery , can be fired horizontally at any desired height in the vertical centre- line of the latter , with its muzzle extending through a hole in , and ...
... firedamp and air , or of raising and igniting coal dust in the interior of the gallery , can be fired horizontally at any desired height in the vertical centre- line of the latter , with its muzzle extending through a hole in , and ...
Stran 226
... firedamp explosion ignited by a spark , much less by 100 grammes of dynamite . Many other points of importance might be referred to with advantage , but space would fail us were we to attempt to go further in this place , and the final ...
... firedamp explosion ignited by a spark , much less by 100 grammes of dynamite . Many other points of importance might be referred to with advantage , but space would fail us were we to attempt to go further in this place , and the final ...
Vsebina
Geological Surveys and New Maps of Mackenzie Mts das Wasser Dr O Anselmino 177 Chemical Dynamics | 199 |
CarusWilson C the Musical Sands of Eigg 518 Uranium Carbide P Lebeau 235 Colloidal Gold | 264 |
Chalon Paul les Explosifs modernes 546 Peroxide on Quinone Prof E Knecht 303 the Develop | 303 |
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A. C. Haddon acid æther Agriculture animals appears April April 28 Astacus Astronomical birds British C-group cent chapter chemical chemistry College colour committee considerable contains dealing described direction discussion edition effect electric engineering experiments fact February firedamp genus Geological given gives Halley's comet illustrated important increase India industry Institute interesting investigation J. J. Thomson laboratory large number larvæ lines London magnetic March March 23 matter means measure ment method miles Museum nature Nubia observations Observatory obtained optical original paper photographs physical plants plates practical present Price problem produced Prof radio-active radium recent records reference regard Royal Geographical Society Royal Society schools scientific South species speed technical temperature theory tion trees trypanosomes turbine University various velocity Victoria Land volume