PRINTED BY ILIFFE AND SON, 3, ST. BRIDE STREET, LUDGATE CIRCUS, LONDON, E.C. WORKS: COVENTRY.
CONTENTS.
| CHAPTER. | PAGE. | |
| I. | Introductory | [9] |
| II. | Bichromates in Conjunction with OrganicSubstances | [12] |
| III. | Summary of the more important PrintingProcesses with Chromated Gelatine | [18] |
| IV. | Collotype Apparatus | [25] |
| V. | Chemicals and Materials for Collotype | [46] |
| VI. | Preparation of the Collotype Plate | [59] |
| VII. | Negatives suitable for Collotype | [72] |
| VIII. | Printing in the Press | [88] |
| IX. | Finishing and Varnishing Collotype Prints | [96] |
| X. | Other Collotype Processes | [102] |
| XI. | Failures in Collotype: In the Preparation ofthe Plates | [107] |
| XII. | Investigations on Collotype | [114] |
| XIII. | Collotype in Natural Colours | [119] |
| XIV. | Magic Prints | [122] |
| XV. | Photo “Glass” Printing | [124] |
| XVI. | Allgeyer’s Collotype Process | [127] |
| XVII. | Practice of Photo-Lithography | [130] |
| XVIII. | Autography | [135] |
| XIX. | Negatives for Photo-Lithography | [149] |
| XX. | Application of the Carbon Process to Photo-Lithography | [155] |
| Appendix. | ||
| Steam Presses | [162] | |
TRANSLATOR’S PREFACE.
The impossibility of obtaining any work in the English language on the subject of Collotype first led to my translation of the German work of Dr. Schnauss, and the fact that no work has hitherto appeared fully dealing with the matter is the excuse I offer for the present publication. The translation is necessarily one of considerable freedom, but it is offered as containing all the information to be found in the original, and in addition, considerable extensions, made with the author’s consent. The omission of the chapter dealing at length with the steam machine was necessitated by the fact that the rotary machine there described is no longer manufactured.
Without pointing to the frontispiece in any sense as a high-class work, it may serve to show that I have made some practical acquaintance with the subject. The illustration, printed on ordinary paper, was produced from the instructions found in this work, and I may add that at the time of writing I have printed over 500 impressions from the first plate, and it still remains in fair working condition.
EDWIN C. MIDDLETON.
Stanmore Road,
Birmingham.