...to this subject,, for in 1822 we find him saying " the colors thus communicated by different bases to flame afford in many cases a ready and neat way of detecting minute quantities of them." Twelve years later, Mr. Fox Talbot called especial attention to the magnificent...

...refrangibility; hence the different colours appear, each letter being able to reflect its own peculiar rays. contributed by different objects to flame afford in...a ready and neat way of detecting extremely minute iquantities of them." Fox Talbot, whose name we know as being so intimately connected with the origin...

...Uerscbel remarked that " the colors contributed by different objects to flame afford in many instances a ready and neat way of detecting extremely minute quantities of them.'' Mr Fox Talbot, in 1834. distinguishes tho difference between the red Нпек produced by the names...

...Copper and some other substances, he says : " 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." And a f ew years later Fox Talbot remarks : "A glance at the prismatic spectrum of flame may shew it...

...powder into the wick of a spirit-lamp. The colours thus communicated by the different bases to name, afford in many cases a ready and neat way of detecting extremely minute quantities of them." The analysis of the spectra of artificial lights was resumed by Fox Talbot (Brewster's Journal of Science,...

...Sir John Herschel remarks that, "The colours thus communicated by different bases to flame affords in many cases a ready and neat way of detecting extremely minute quantities of them." In 1834 Mr. Fox Talbot, speaking of his experiments with the red tint of flame produced by lithium...

...concerning these observations — " the colour thus contributed by different objects to flame affords in many cases a ready and neat way of detecting extremely minute quantities of them." Again, Fox Talbot writes as follows in 1826: — "The red fire of the theatres gave a most beautiful...

...general," impart to flames, he observes that " 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 ;" and he assigns also reasons to show that " these tints arise from the molecules of the colouring-matter...

...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 and neat...of detecting extremely minute quantities of them. The pure earths, when violently heated — as has been recently practised by Lieutenant Drummond, by...

...of flame colorations in chemical analysis : " 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." 31 Fox-Talbot, whose name will always be remembered in connection with the beautiful art of photography,...