Spots of Greafe from Paper. 3I 
brilliancy ; and the dirtinefs of the paper, which offends the 
eye, makes the fubject lofe much of its charms and attrac- 
tion. It is a great misfortune, therefore, to thofe who. pur- 
chafe books for the fake of reading them, when the objects 
of their enjoyment are injured by the too clofe application 
of a candle or lamp. For this reafon M. Defchamps, at the 
requeft.of a man of letters, to whom an accident of this 
kind had happened, devifed the following procefs, which was 
attended with complete fuccefs : 
After having gently warmed the paper {tained with greafe, 
wax, oil, or any fat body whatever, take out as much as 
poffible of it, by means of blotting-paper. Then dip a 
fmall brafh in the effential oil of well rectified fpirit of tur- 
pentinée, heated almoft to ebullition (for when cold it acts 
only very weakly), and draw it gently over both fides of the 
paper, which muft be carefully kept warm. ‘This operation 
muit be repeated as many times as the quantity of the fat 
body imbibed by the paper, or the thicknefs of the paper, 
may render neceflary. When the greafy fubftance is en- 
tirely removed, recourfe may be had to the following method 
_ to reftore the paper to its former whitenefs, which is not 
completely reftored by the firft procefs. Dip another bruth 
in highly reét:fied fpirit of wine, and draw it, in like man- 
ner, over the place which was ftained, and particularly 
round the edges, to remove the border, that would ftill pre- 
fent a ftam. By employing thefe means, with proper 
€aution, the fpot will totally difappear; the paper will re- 
fume its original whitenefs; and if the procefs has been 
employed on a part written on with common ink, or printed 
with printers ink, it will experience no alteration. 
VI. Objirs 
