1842 



Journal of Applied Microscopy 



] 



LABORATORY PHOTOGRAPHY. 



Devoted to Methods and Apparatus for Converting an Object into an Illustration. 



SOME SUGGESTIONS ON ONE WAY TO MAKE LANTERN 



SLIDES. 



If one must reduce the size of his picture so as to get it on a plate so small 

 as a lantern slide plate (S'j/l x 'iy^), he must have an apparatus similar to the one 

 shown in the cut, that is, if he wishes to make a slide from a negative of any 

 size from 4x5 to 8x10, or larger. If he is to make them from negatives of 

 various sizes he must have a series of kits, the one fitting into the other, similar 

 to 1, 2, 3, and 4 in the cut. (1) holds a Sj{ x4i^ and fits into the 4x5 opening 



Apparatus for making Lantern Slides. 



of (2), which carries a 4 x 5 plate and fits into the opening of (3j, which carries 

 a 5 X 7 plate, etc., up to 8 x 1(». 



The camera, with arrangement for carrying the lantern slide plate, must be 

 focused on the negative placed in the carrying kits. The support for the nega- 

 tive and the camera should be the same, and they should be firmly adjusted 

 on supports of the proper height to bring the camera axis about to the middle of 

 the negative. All the light which enters the camera mus/ (not may or should) 



