LONDON:
JOHN CHURCHILL, NEW BURLINGTON STREET.
MDCCCLVII.

[The Author reserves to himself the right of translating this Edition.]

PRINTED BY
JOHN EDWARD TAYLOR, LITTLE QUEEN STREET,
LINCOLN'S INN FIELDS.


[PREFACE TO THE THIRD EDITION.]

It is a source of much, gratification to the Author to find himself called upon to prepare a Third Edition of his Manual in less than fourteen months from the date of its first publication. No greater proof could have been afforded of the rapid advance which the Photographic Art is now making in this country.