TALBOT7076

N S Maskelyne Esq

[blind stamp:] The Athenæum Club ¹

London
Dec 2

D^r Sir

Rob^t Murray ² assures me he has sent you the Slides.

In order to show that in the Collodion process, glass only acts as a support, I have made some on paper one of which I enclose.

The Collodion was poured upon the paper – All the process was the same as usual – It was equally sensitive as if it had been on glass – You see how sharp the definition is where it is in focus, I have no doubt it would give good positive copies, but thought it unnecessary to try.

My object was by laying this side by side with a Calotype negative to ask any unprejudiced person if it could be considered more than a modification of the latter? ³ The glass introduces an apparent difference of principle, take away the glass which is only a convenient support and the difference of principle disappears –

believe me Yours vy Truly
H. F. Talbot