 | 1864 - 332 pages
...tracing substances in impure solutions —that of fluorescence. The phenomenon of fluorescence consists in this, that certain substances, when placed in rays...from one substance to another, and continues from thence onwards, more or less strongly in one part or another, according to the particular substance.... | |
 | 1864 - 648 pages
...fluorescence. The phenomenon of fluorescence eonsi»ts in this, that certain substances, when placed in msof one refrangibility, emit during the time of exposure...compound light of lower refrangibility. When a pure iuorescent substance (as distinguished from a mixture) is examined in a pure spectrum, it is found... | |
 | Royal Institution of Great Britain - 1866 - 730 pages
...tracing substances in impure solutions — that of fluorescence. The phenomenon of fluorescence consists in this, that certain substances, when placed in rays...from one substance to another, and continues from thence onwards, more or less strongly in one part or another according to the particular substance.... | |
 | Mary Somerville - 1869 - 454 pages
...fluorescence as a means of tracing substances in impure chemical solutions. When a pure fluorescent substance is examined in a pure spectrum it is found that on...from one substance to another, and continues from thence onwards more or less strongly in one part or another according to the particular substance.... | |
 | Mary Somerville - 1869 - 454 pages
...fluorescence as a means of tracing stibstances in impure chemical solutions. When a pure fluorescent substance is examined in a pure spectrum it is found that on...from the extreme red to the violet and beyond, the fhiorescence commences at a certain point of the spectrum, varying from one substance to another, and... | |
 | George Gabriel Stokes - 1904 - 391 pages
...tracing substances in impure solutions — that of fluorescence. The phenomenon of fluorescence consists in this, that certain substances, when placed in rays...varying from one substance to another, and continues thence onwards, more or less strongly in one part or another according to the particular substance.... | |
 | Royal Institution of Great Britain - 1866 - 742 pages
...tub.-tiiiices in impure solutions — that of fluorescence. The phenomenon (if fluorescence consists in this, that certain substances, when placed in rays...one refrangibility, emit during the time of exposure compimnd light of lower refrangibiliiy. When a pure fluorescent substance (as distinguished from a... | |
 | 1864 - 1214 pages
...tracing substances in impure solutions—that of fluorescence. ‘rhe phenomenon of fluorescence consists in this, that certain substances, when placed in rays...varying from one substance to another, and continues thence onwards, more or less strongly in one part or another according to the particular substance.... | |
 | 1864 - 1632 pages
...tracing substances in impure solutions — that of fluorescence. The phenomenon of fluorescence consists in this, that certain substances, when placed in rays...substance (as distinguished from a mixture) is examined in n pure spectrum, it is found that on passing from the extreme red to the violet and beyond, the fluorescence... | |
 | 1865 - 786 pages
...— that of fluorescence. The phenomenon of fluorescence consists ¡л this, that certain substance', when placed in rays of one refrangibility, emit during the time of exposure compour. ! light of lower refrangibility. When a pore fluorescent substance (as distinguished from... | |
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... somewhat different in the two cases. Time would not permit of more than a very brief reference to the second property to 'which the speaker had referred as useful in tracing substances in impure solutions —that of fluorescence. The phenomenon of... 