280 MODE OF PREPARING EPISPASTIC PAPER. 
a circle ; then I brought the under side of the paper close 
to the composition, and made it glide rapidly over the sur- 
face, taking particular care that the composition, which 
ought only to cover one side of the paper, does not touch 
the other. A little practice enables one to avoid this 
easily. 
While the paper, guided by the left hand, passes over 
the surface of the composition, the right hand follows the 
movement, and lowers the other extremity when it arrives 
at the end ; the paper, still supported by the left hand, finds 
itself thus placed horizontally above the plate, in which 
position it is held until it grows cold, the work of an instant 
only. 
As fast as the papers are prepared they are ranged on a 
table by the side of each other, but in a few minutes after- 
wards they may be placed on the top of each other, with- 
out fear of their adhering. They are then cut up with a 
pair of scissors, and each strip of paper, of the dimensions 
we have described, will just make 5 pieces. 
By varying the temperature you can change this paper 
at your will with more or less of the composition j so that, 
when you wish for a thin layer, you take care to keep 
the water boiling ; if, on the contrary, you require a thicker 
layer, the heat must be below 100° C, which can be easily 
managed by interposing a plate between the boiling water 
and that which holds the composition; if it be required to 
be still more loaded you pass it a second time over the com- 
position. — Ibid., from Journ. de Che?n. 
