Ingleby's Essay on the Stereoscope, 401. 451.
lenses, 133. 476.
Lyte's three new processes, 252. 373.
—— treatment of positives, 15.
manuscripts copied, 456. 501.
minuteness of detail on paper, 157.
Muller's process, 203. 253. 275. 451.
multiplication of photographs, 85. 157.
negative paper, 203.
photographic exhibition, 476.