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PHOTOGRAVURE.

BY HENRY R. BLANEY.

INTRODUCTION.

CHAPTER I.

The Negative.

Solution A.

Solution B.

Woodbury's Formula.

Obernetter Process.

CHAPTER II.

The Transparency.

Eikonogen and Hydrochinon Developer.

Carbutt's New Acid Fixing and Clearing Bath.

CHAPTER III.

The Carbon Tissue—(Sensitizing and Exposure) .

Sensitizing the Tissue.

CHAPTER IV.

The Cleaning and Graining of the Copper Plate, and Grade of Copper Necessary, and Where and How to Buy It at Reasonable Prices.

II.— Graining the Copper Plate.

CHAPTER V.

Development of Negative Resist on the Copper Plate, and Preparation for Biting with Acid through the Gelatine.

CHAPTER VI.

The Acid Baths.—How to Make Them and Method of Biting through the Gelatine.

Formula for Acid Baths.

Biting Bath.

Another Formula.

Average Bitings.

CHAPTER VII.

Cleaning and Polishing the Plate, with Tools Necessary for Retouching.

CHAPTER VIII.

Printing the Plate and Steel Facing.

Steel Facing.

(Obernetter's.)

CHAPTER IX.

Materials Necessary for Photogravure, and List of Firms Supplying them.

Materials.

List of Firms Supplying Materials for Photogravure.

CHAPTER X.

Books and Articles on Photogravure. Published from 1888 to 1893.

Merck's Pyrogallic Acid

Scovill & Adams Photo-Engraving Materials,

Copying Cameras

PHOTO-ENGRAVING.

The Scovill Enlarging, Reducing and Copying Cameras.

SCOVILL Copying Cameras.

The S. & A. Photo-Engravers' Adjustable Screen Plate Holder.

The Scovill Printing Frames for Photo-Engraving.

IN OLDEN TIMES

Process Engravers.

· · Publications · ·

SUN AND SHADE.

ALFRED SELLERS & CO.

Printing Frames, Etching Tubs, Etching Powders, Rollers, Etc.

AMATEURS!

Photogravure Worker.

NO?

BETTER DO SO AT ONCE.

ZEISS-ANASTIGMAT LENSES

BAUSCH & LOMB OPTICAL CO.

The Scovill & Adams Co. 423 Broome Street, New York.

= IMPORTANT =

Send orders to your Dealers, or to The Scovill & Adams Co., New York.

See that you get the Genuine "Schering's." Excelled by none.

Send Orders to your Dealers, or to THE SCOVILL & ADAMS COMPANY, NEW YORK.