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POPULAR SCIENCE EE VIEW. 
man who, at the time Mr. Taylor’s paper was read, edited a photographic 
contemporary. In this case, however, the reader of the paper was by no 
means backward in the use of u varnish,” and verily he received his reward. 
The Journal of the Photographic Society, in its last issue, speaks of u the 
new (?) lens ” — under which name it is already advertised for sale — as “ an 
optical discovery, the importance of which cannot be overestimated,” and 
11 a service equal to that which Petzval did to photography itself in ren- 
dering it, so far as optical instruments are concerned, a thing at all 
possible ! ” If this is true, Mr. Taylor has reason to be proud. 
A New Paper. — We believe that the use of collodio-chloride was intro- 
duced by Captain Dixon, and was first publicly announced, in connection 
with a new process, in the Photographic News, April 26, 1861. Among the 
various trifling modifications, and consequent applications, since introduced 
by photographers — each of whom has laid claim to the full merit of an 
original discovery and invention — the more recent is found in connection 
with a new paper for photographic printing, called u Leptographic.” 
Numerous and valuable advantages have been claimed for this paper by the 
French company interested in its sale, but it must be remembered that if it 
is the collodio-chloride process, as experiments appear to demonstrate, in 
yet another of its various modifications — which, however, the manufacturers 
deny — all the disadvantages which have been urged against the one process 
are still in full force against the other. The Leptographic process has been 
successfully used to give a photographically sensitive surface to wood, canvas, 
leather, ivory, silk, and other surfaces ; and is said to be specially suitable 
for enlargements. The paper is issued ready sensitised, and prints are pro- 
duced on it with great rapidity. 
Photographs in Natural Colours . — A Photographic Canard. — We believe 
the announcement — which our readers may remember — of a murderer having 
been convicted by his image being photographed from the retina of his 
victim’s eye, once made with so much circumstance, emanated from a foreign 
correspondent to the Morning Post. Although the Lancet clearly demon- 
strated the extreme absurdity of the paragraph, yet it went the round of all 
our English papers, and after travelling abroad came back to us again, of 
course considerably augmented. The Morning Post has more recently been 
equally successful in starting a similar canard on its travels, through its Paris 
correspondent, who stated that M. Chambray, a French photographer, had 
discovered a means of producing photographs in natural colours, and declared 
that he, the Paris correspondent, had himself carefully investigated the 
wonderful process, and was satisfied and delighted with the perfection of 
what he called u the great chemical and art event of the day.” This wonder, 
having been duly echoed and re-echoed, created quite a sensation amongst 
the credulous, and induced the Paris correspondent of the British Journal of 
Photography to investigate the matter, when it turned out that M. Chambray 
laid no claim to any such discovery, and that the supposed photographs in 
natural colours were merely ordinary photographs coloured at the back and 
rendered transparent. 
M. Claudefs Process, as described in our last, has been placed before 
the Photographic Societies of London and Paris, and the opinions we 
expressed concerning it have been confirmed by the general opinion of the 
