xii CONTENTS. 



CHAPTER VII. 



PHOTOGRAPHY ON PAPER AND ON GLASS. 



PAGE 



I. Photography on Paper. Talbot's Invention. Blancquard-Evrard 



Processes 298 



II. Photography on Albuminized Glass 301 



III. Photography on Collodion 302 



IV. The Optical Apparatus employed in Photography 304 



V. Photography with Artificial Light 307 



VI. Enlarged Proofs. Microscopic Photography 308 



CHAPTER VIII. 



HELIOGRAPHY. PHOTOLITHOGRAPHY. 



I. Different Permanent Processes with Carbon and Printing Ink . . . 313 



II. Relief Impression. Wood bury Process 318 



III. Chromoheliography 320 



IV. Application of Photography to the Arts and to the Natural and 



Physical Sciences 323 



BOOK IV. 



APPLICATIONS OF THE PHENOMENA AND THE 

 LAWS OF HEAT. 



CHAPTER I. 



THE ART OF WARMING. 



I. Ancient Methods of Warming ...... 333 



II. Warming by Means of Fireplaces ...... .V. . ... . 337 



III. Ventilating Fireplaces . . .-. . . . ^ . . . . . . . . 343 



IV. Stoves -. . ....... ... .'...'. 344 



