CHAPTER VIII 

 PREPARATION OF LANTERN SLIDES 



310. Apparatus and Material for Chapter VIII: 



A photographic dark room; Camera with suitable objectives and 

 plate holders (fig. 116-119); Lantern-slide plates, negative plates 

 of various kinds; Chemicals for developing, etc.; Colors and 

 brushes for tinting the slides; A retouching frame (fig. 113); 

 Cover-glasses and binding strips and mats for the slides ; Markers 

 and labels for the slides; Cabinet for the slides (fig. 120). 



311. For the historical development of lantern slides see the 

 works referred to in Ch. I, 2, and for photographic lantern slides, 

 The Journal of the Royal Society of Arts, Vol. LIX (191 1), pp. 



255-257- 



For making and coloring lantern slides see the works inCh. I, 2, 

 and Lambert, Lantern-slide making and coloring. 



The Photo-Mineature series No. 9, Lantern Slides, and No. 83, 

 Coloring Lantern Slides. 



312. Modern lantern slides are of several standard sizes as 

 follows: (See3i2a). 



A. American slides. These are oblong plates 82.5 x 102 mm. 

 (3^ x 4 inches). They are designed to go into the lantern -slide 

 carrier with the long side horizontal ( 35). 



B. British slides. These are square, being 82.5 x 82.5 mm. 

 (3 Y* x Z% inches) (37). 



C. French slides. These are, following the recommendations 

 of the French Congress of Photography for 1889, 85x100 mm. 

 (3 n /32 x 3 lr ri6 inches). That is, the standard is practically like the 

 American, and French slides can be used in American lantern-slide 

 carriers. 



D. German slides. In Germanic countries, slides of 85 x 100 

 mm. are much used, but the German standard is often given as 

 90 x 120 mm. (3%; x \y inches). Those of 130 x 180 mm. are 

 likewise employed. 



