第44章

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"It is indicative of talent worthy of the important Art it is designed to elevate."--American.

"This Art is entitled to its own organ, which could not have fallen into better hands than those of the editor of 'Humphrey's Journal.'"--Transcript.

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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.