 | 1871 - 808 pages
...intervals at all events, till 1827, when he wrote, " The colors thus contributed by different objects to flame afford in many cases a ready and neat way...of detecting extremely minute quantities of them." Here we find spectrum analysis almost stated in terms, and yet, although Herschel, Brewster, and Fox... | |
 | Encyclopaedia - 1845 - 876 pages
...it is obtained, and its identity at all times. The colours thus communicated by the different base« to flame, afford in many cases a ready and neat way of detecting extremely minute quantities of them ; but this rather belongs to Chemistry than to our present subject. The pure earths, when violently... | |
 | 1871 - 792 pages
...intervals at all events, till 1827, when he wrote : "The colours thus contributed by different objects to flame afford in many cases a ready and neat way...of detecting extremely minute quantities of them." Here we find spectrum analysis almost stated in terms, and yet, although Herschel, Brewster, and Fox... | |
 | Sir William Crookes, George Wharton Simpson - 1860 - 858 pages
...its identity at all times. The colours thus communicated by the different bases to Зяте afiord in many cases a ready and neat way of detecting extremely minute quantities of them ; but this rather belongs to chemistry than to our present subject. The pure earths, when violently... | |
 | 1862 - 328 pages
...and in an article on Light in the Encyclopedia Hetrcpolilana, in the year 1817, Herschel says, — " The colours thus communicated by different bases to...of detecting extremely minute quantities of them." But it is to Fox Talbot, a gentleman well-kno on to us as one of the first investigators of the beautiful... | |
 | William Allen Miller - 1863 - 618 pages
...in question are put in powder into the wick of a spirit-lamp. The colours thus communicated by the different bases to flame, afford in many cases a ready...of detecting extremely minute quantities of them." The analysis of the spectra of artificial lights was resumed by Fox Talbot in 1826, in vol. v. of Brewster's... | |
 | 1863 - 694 pages
...arc put in powder into the wick of a spirit-lamp « . . . . » The colours thus communicated by the different bases to flame afford, in many cases, a...way of detecting extremely minute quantities of them «... » The pure earths, when violently heated, as has recently been practised by Lieutenant Drummond,... | |
 | 1863 - 720 pages
...are put in powder into the wick of a spirit-lamp « . . . . » The colours thus communicated by the different bases to flame afford, in many cases, a...of detecting extremely minute Quantities of them« ... » The pure earths , when violently heated, as has recently been practised by Lieutenant Drummond,... | |
 | 1863 - 708 pages
...question are put in powder into the wick of a spirit-lamp « .... « The colours thus communicated by the different bases to flame afford, in many cases, a...way of detecting extremely minute quantities of them «... » The pure earths, when violently heated, as has recently been practised by Lieutenant Drummond,... | |
 | Edward Isidore Sears - 1865 - 858 pages
...he says, " the muriates succeed best from their volatility ;" " the colors thus communicated by the different bases to flame, afford in many cases a ready...of detecting extremely minute quantities of them." TalbotJ, in 1826, analysed the spectra of various artificial lights. He observed a constant yellow... | |
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The colours thus communicated by the different bases to flame afford, in many cases, a ready and neat way of detecting extremely minute Quantities of them... 
