226 THE BOOK OF THE LANTERN. 



dish. With a good stiff hog-hair stencil-brush break up 

 the cold jelly, and rub it vigorously over the paper, just as 

 you would break up cold starch jelly in mounting prints. 

 Now drag the paper slowly over an earthenware foot- 

 warmer, which has been duly charged with boiling water. 

 The heat will cause the little specks of jelly on the paper 

 to melt and mingle, and the whole will present a smooth 

 surface. The paper must now be hung up to dry, or it 

 may be used at once. I need hardly say that all these 

 operations must be conducted by non-actinic light. The 

 majority of workers, however, will prefer to buy their 

 argentic paper ready-made, and, by doing so, save them- 

 selves possibly much vexatious disappointment. 



Any room will serve for the purpose of making an 

 enlargement ; but it is preferable to conduct the work 

 at night, because then is saved the trouble of darkening 

 a room so that it is really fit for photographic opera- 

 tions, by no means an easy matter. Having a dark 

 room, the further requirements are a lantern, a screen 

 as aforesaid in front of it, with a sheet of white paper 

 pasted over its surface, a good red lamp, a developing 

 dish, the necessary chemicals, and, lastly, plenty of water 

 and a pail for waste solutions. If the room has in 

 it a tap and sink, so much the better. The negative 

 (which should be a good one, or it will not be worth 

 enlarging) is placed in the lantern like an ordinary slide, 

 taking care that the film side is turned towards the screen, 

 and away from the light. Now carefully focus its image 

 011 the white board. Having placed lantern and screen at 

 such a distance from one another that the image is of the 



