Chapter XII: Photographing on Wood and Other Processes

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THE SCOVILL & ADAMS COMPANY,
423 Broome Street, New York City.

* * * * *

PHOTOGRAVURE.

BY
HENRY R. BLANEY.

_With Introduction and Additions by the Editor._

NEW YORK:
THE SCOVILL & ADAMS COMPANY.
1895.

Copyright, 1895.
THE SCOVILL & ADAMS COMPANY.

CONTENTS.

PAGE
INTRODUCTION BY THE EDITOR.--Early History of Photogravure--
Woodbury's Process--Other Methods, 5

CHAPTER I.--The Negative.--Quality best Suitable.--Necessity
for Reversing.--Methods of Obtaining Reversals.--The Powder
Process, 9

CHAPTER II.--The Transparency.--The Carbon Process.--Cutting
up the Tissue.--Sensitizing.--Drying.--Exposing.--Continuing
Action of Light.--Development.--Carbutt's Transparency
Plates, 15

CHAPTER III.--The Carbon Tissue.--Sensitizing and Exposing.--
The Actinometer, 22

CHAPTER IV.--Cleaning and Graining of the Copper Plate Plate--
Grade of Copper Necessary.--Where and How to Buy it, 25

CHAPTER V.--Development of Negative Resist on the Copper
Plate.--Preparation for Biting with Acid through the
Gelatine, 29

CHAPTER VI.--The Acid Baths.--How to Make Them and Method
of Biting through the Gelatine, 32

CHAPTER VII.--Cleaning and Polishing the Plate, with Tools
Necessary for Retouching, 37

CHAPTER VIII.--Printing from the Plate.--Steel Facing, 39

CHAPTER IX.--Materials Necessary for Photogravure--List of
Firms Supplying Them, 41

CHAPTER X.--Books and Articles on Photogravure, 1888-1893, 44