A. J. Newton

• A note on collodion emulsion for three-colour, and some half-tone problems
• A note on dragon's blood
• Accession
• Colour originals for line work
• Dragons of Crystal Cave
• Dry plates in photo-mechanical work
• Laces and similar materials in facsimile
• Newspaper illustration
• Notes on the character of photo-mechanical grains
• Results with the metzograph screen
• Scaling the spectrum
• Screen distance in half-tone