PAPYROGRAPHY. 
surface in the two materials lias not yet been overcome by art, 
though it seems likely, that by pressing damp paper against a 
grained stone, or by mixing some finely powdered ingredient (not 
calcarious) with the fibrous material of the paper, a surface may be 
produced, which shall possess the desired structure. In the mean- 
time, this object may be in some measure attained, by using paper 
of a hard fine surface, and by stretching it upon a smooth drawing 
board, a slate, or other level and unyielding material. The best 
kind of paper for Papyrography seems to be good drawing paper, 
smooth , but not glossy , as in the latter case, the chalk rubs over 
it without producing a clear definite stroke. The ‘ metallic paper’ 
used for note books also answers exceedingly well ; but care must 
be taken that no calcarious matter is contained in it, as sometimes 
happens, for in that case the acids used in transferring will cause 
effervescence and spoil the drawing. 
“ The best lithographic chalk should be used : it ought to be of 
considerable hardness, and cut to a fine point. The design may 
first be sketched with a common pencil, so as to admit of altera- 
tions and corrections ; for the marks produced with plumbago do not 
reappear in the anastatic impressions, whereas the lines drawn with 
lithographic chalk are nearly indelible. In drawing with this chalk, 
the desired effect should, as far as possible, be produced at once, 
by means of clear well defined strokes ; for if the darker parts are 
much and repeatedly worked over, they are apt, in printing, to 
produce a muddy effect, from the blending together of the minute 
specks which compose the tint. 
“ When the drawing is thus prepared, the next step is to get it 
printed. Now, anastatic printers are very scarce, the art having 
been only recently introduced into this country, and I may there- 
fore save further trouble, by mentioning the name of Mr. Delamotte, 
Broad Street, Oxford, as being a skilful printer of Papyrography, 
and other branches of the anastatic art. The drawings, when sent 
to the printer, should have a sheet of smooth paper laid over them, 
to prevent rubbing, and may be packed either flat between two 
boards, or in a roll of sufficient strength to resist compression.” 
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