PLATE MAKIH 



[NO. 20 OF THE SCOVILL PHOTOGRAPHIC SERIES]. 



By QKO. L. SINCLAIR, Nl.D. 



Reprinted from (l T1ie Photogrphic Times," with additions and corrections. 



EDITED BY W. I. LINCOLN ADAMS. 



A SERIES OF PRACTICAL ARTICLES ON 



jp Crrjulsior) IT) erljirjer j ^J} irrjpla F/arretiiar) e| llrj 

 al Expeiier)ea ej irj 



-IT TREA TS OF- 



THE EMULSION, 



WASHING, 



MELTING, 

 A RAPID EMULSION, 



GELATINE, 



PREPARING THE GLASS 

 FOR COATING, 



COATING. ETC., ETC. 



Royal octavo, leatherette binding 50c. 



DICTIOIARY OF 



By E. J. WAU,. 



AN AUTHORIZED AMERICAN EDITION. 



As a reference book and photographic cyclopedia it is invaluable to 

 every photographer, be he professional or amateur. Concise definitions of 

 all terms used in photography are given in such a manner that they may 

 be easily and quickly found. The book is printed on fine supersized and 

 calendered paper, and bound substantially and neatly in cloth, uniform 

 with the other volumes of THE SCOVILL PHOTOGRAPHIC SERIES. It con- 

 sists of 240 pages, royal octavo. 



Price Only $1.50. 



Each book enclosed in a neat paper mailing case. 



THE SCOVILL & ADAMS COMPANY, Publishers, 



