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THE PRACTICAL MANUAL OF THE COLLODION PROCESS.
BY S. D. HUMPHREY.
THIRD EDITION

This Edition contains all the Improvements in the Art made public up to
the day of publication, and gives complete Practical Instructions for
making Collodion Positives or Ambrotypes, Collodion Negatives,
Printing, etc., etc. The quick, great and unprecedented sale of the
first and second editions demonstrates, more than the strongest
language could possibly do, the extraordinary and increasing popularity
of this work. The Third Edition contains two hundred and sixteen 12mo.
pages, of a larger size and in smaller type than either of the
preceding editions, and is illustrated with numerous wood-cuts. It is
intended to be the best practical work extant; substantially bound in
cloth, price One Dollar; forwarded by mail (postage prepaid). Address

S. D. HUMPHREY, New York

A GUIDE TO PHOTOGRAPHY,

Containing simple and concise directions for obtaining Views,
Portraits, etc., by the chemical agency of Light, by W. H.
Thornthwaite, author of "Photogenic Manipulations," etc. Illustrated
with numerous wood-cuts. The Book contains more than one hundred 12mo
pages, bound in board, and is sold at twenty-five cents per copy, or
five copies for one dollar. Address

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HOLMES, BOOTH & HAYDENS,
MANUFACTURERS OF
DAGUERREOTYPE CASES,
PLATES, CAMERAS,

MATTINGS, PRESERVERS, ETC., ETC.

MANUFACTURERS AND IMPORTERS OF EVERY VARIETY OF AMBROTYPE, AND
PHOTOGRAPHIC GOODS,

Of the Best and most approved Quality.

ESPECIAL ATTENTION GIVEN TO THE FURNISHING OF EVERY ARTICLE USED IN THE
PRACTICE OF THE DAGUERREOTYPE

Depot 81 Chambers and 63 Reade St., New York.

Manufactory at Waterbury, Conn.

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From 1/4 to the Mammoth size. These CAMERAS are of the most superior
make, and all subjected to the most thorough test before being offered
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VIEW CAMERAS, made expressly for taking views: an entirely new article.

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ATTENTION TO THE

Wreath, and H. B. & H. Eagle 40 Plates, AS HAVING NO EQUALS IN THE
MARKET.

SOLE AGENTS FOR THE CELEBRATED H. B. AND N. P. FRENCH PLATES.

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