Bunsen and the speaker state, in the memoir above referred to, that " the steady and equable light evolved by magnesium wire burning in the air, and the immense chemical action thus produced, render this source of light valuable as a simple means of obtaining... On Molecular and Microscopic Science - Page 154by Mary Somerville - 1869 - 432 pagesFull view - About this book
| 1864 - 332 pages
...photographic purposes becomes at once apparent. The extract from the memoir referred to is as follows : — "The steady and equable light evolved by magnesium wire burning in the air, and die immense chemical action thus produced, render this source of light valuable as a simple means of... | |
| 1864 - 648 pages
...photographic purposes becomes at once apparent. The extract from the memoit referred to is as follows : — "The steady and equable light evolved by magnesium...valuable as a simple means of obtaining a given amount of illumination expressed in terms of out measurement of light. . . . The combustion of magnesium constitutes... | |
| 1864 - 654 pages
...photographic purposes becomes at once apparent. The extract from the memoir referred to is as follows : — "The steady and equable light evolved by magnesium...valuable as a simple means of obtaining a given amount of illumination expressed in terms of our measurement of light. . . . The combustion of magnesium constitutes... | |
| Literary and Philosophical Society of Manchester - 1864 - 1170 pages
...photographic purposes becomes at once apparent. The extract from the memoir referred to is as follows : — "The steady and equable light evolved by magnesium...produced, render this source of light valuable as a 'mple means of obtaining a given amount of illumination oressed in terms of our measurement of light... | |
| Royal Institution of Great Britain - 1866 - 730 pages
...purposes becomes at once apparent. Professor Bunsen and the speaker state in the memoir above referred to, that, " the steady and equable light evolved by magnesium...of light valuable as a simple means of obtaining a giveu amount of chemical illumination, and that the combustion of this metal constitutes so definite... | |
| HUGH W. DIAMOND, M.D., F.S.A. - 1866 - 516 pages
...becomes at once apparent. In the memoirs published iu the above year it is stated that the steady awl equable light evolved by magnesium wire burning in the air, and the immense chemical ¿L-tiou thus produced, render this source of light valuable as a simple meiins of obtaining a given... | |
| Andrew Ure - 1867 - 1144 pages
...ray e for photographic purposes becomes apparent. Professors Bunsen and Iloscoe say in their memoir: "The steady and equable light evolved by magnesium...thus produced, render this source of light valuable asa simpler means of obtaining a given amount of illumination expressed in terms of our measurement... | |
| Henry Enfield Roscoe - 1870 - 514 pages
...becomes at once apparent. Professor Bunsen and the speaker state, in the memoir above referred to, that "the steady and equable light evolved by magnesium...and that the combustion of this metal constitutes so definite and simple a source of light for the purpose of photochemical measurement, that the wide... | |
| sir Henry Enfield Roscoe - 1869 - 396 pages
...becomes at once apparent. Professor Bunsen and the speaker state, in the memoir above referred to, that "the steady and equable light evolved by magnesium...action thus produced, render this source of light vaiuable as a simple means of obtaining a given amount of chemical illumination ; and that the combustion... | |
| sir Henry Enfield Roscoe - 1870 - 452 pages
...becomes at once apparent. Professor Bunsen and the speaker state, in the memoir above referred to, that " the steady and equable light evolved by magnesium...and that the combustion of this metal constitutes so definite and simple a source of light for the purpose of photochemical measurement, that the wide... | |
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