THE ESSENTIALS OF ILLUSTRATION

A PRACTICAL GUIDE TO THE REPRODUCTION OF DRAWINGS
& PHOTOGRAPHS FOR THE USE OF SCIENTISTS & OTHERS

By

T. G. HILL

Reader in Vegetable Physiology in the University
of London, University College

LONDON
WILLIAM WESLEY & SON
28 Essex Street, Strand
1915

PRINTED BY THE WESTMINSTER PRESS, LONDON, W.

CONTENTS

PAGE
Intaglio Printing[1]
Intaglio plates[2]
Line engraving [2]
Etching[5]
Soft-ground etching[6]
Mezzotint[7]
Photogravure[8]
Plane Surface Printing[15]
Lithography[15]
Chromolithography[20]
Photolithographic processes[23]
Collotype[23]
The preparation of illustrated pages[26]
Relief Printing[33]
Woodcuts and engravings[33]
The Half-tone process[37]
The Half-tone three-colour process[46]
Photomechanical line blocks[49]
The drawing of microscopic details[67]
The drawing of diagrams and apparatus[72]
The drawing of maps[76]
The drawing of graphs or curves[79]
The swelled gelatine process[84]
The Relative Cost of blocks and plates by various processes[89]
Literature[91]