SCIOPTICON MANUAL. 



CHAPTER Y. 



GLASS POSITIVES FOR THE MAGIC LANTERN, 



BY JOHN C. BROWNJC. 



FEW entertainments for the amusement of children, 

 as well as persons of ntature years, give more real pleas- 

 ure than exhibitions of the magic lantern. It is a never- 

 ending source of pleasure, and doubly valuable to the 

 disciple of photography, who by the aid of a few chem- 

 icals and very simple apparatus, can prepare interesting 

 slides of local interest that will delight the home circle, 

 and fully repay the small expenditure of time required 

 for their manufacture. Every photographer has among 

 his negatives many subjects, both portrait and landscape, 

 that when printed upon glass will prove effective pic- 

 tures for exhibition. 



The object of this paper is to give in as few words as 

 possible, plain directions for making positives on glass, 

 suitable for the magic lantern. 



Either the wet or dry process can be used. The for- 

 mer is more applicable in cases where it is necessary to 

 reduce a negative to the proper sized positive required 

 for the lantern. The dry method is used to advantage 

 when the negative is of small size, and can be printed in 

 contact. As all photographers are familiar with wet 

 manipulations, we will consider that process first. 



The only apparatus actually required, is an ordinary 

 camera and lens, placed upon a board six feet long, in 

 front of which a negative is fastened. This negative is 

 simply copied upon a sensitive collodion plate, that is 



