200 Miscellanies. 
by degrees, stirring the mass carefully, 18 lbs. 6 oz. of pure olive 
oil, (no matter what its age or taste.) The mixture-becomes trans- 
parent, and acquires, while warm, a syrupy consistence, and when 
cold it is tenacious, viscous, and looks like turpentine. This mixture, - 
furnishes an excellent varnish for leather, properly prepared, leaving ~ 
- it in a flexible state, and admitting a good polish. 
. Ten Ibs. of resin and fifteen Ibs. of fish oil, or oil of rape atm 
colza, afford a proper coating for cordage or oakum, or sail cloth. 
The cloth must be perfectly dry, and the mixture applied boiling 
hot. It should then, after the superfluous portions have drained. off, 
be carefully dried in the air, before it is exposed to water. A 
month’s drying is generally sufficient. Oil of linseed, olivette, or 
beach, can by no means be substituted for that prescribed. 
Ten pounds of resin and thirteen and a half pounds of fish oil, 
make a proper varnish for wood; applied boiling hot. When the 
wood is duly impregnated, a little wick lime should be sprinkled over 
it, moistened with water, and then the whole surface well rubbed 
with a wisp of straw, by which the pores of the wood become com- 
pletely closed. 
As a hydrofuge for walls, the following is recommended: 10 Ibs. 
of resin déprived of its moisture, and 10 Ibs. of rape seed oil, melted 
together and applied to the wall with a tow brush. The wall must 
be previously made very dry and well warmed. 
This coating had better be applied twice, or subsequently a mix- 
ture of 10 Ibs. of drying linseed oil, 10 Ibs. of resin, and 6 lbs. of 
Bougival white, may be applied as a thin coating. — ‘The wall sti 
be rubbed with a very coarse cloth, an d_ allowed to 
thus prepared may be painted on, or paper ed, without risk iim 
tome 15, p. 186. 2 
4. Economy of Sealing Wax.—In public offices, and other situa- 
tions, in which letters sealed with wax accumulate to a great extent, 
it may be well to know that the wax may be preserved and used on - 
other occasions. ‘Two methods have been tried in France, (both 
effectnal,) of separating the wax from the paper. The first is 1 
pulverize the whole in an iron mortar, and then effect the separation 
by sieves of a proper degree of coarseness. The second is to place 
the mixture ina wire basket with open meshes, and expose it to the 
action of steam. The wax melts, runs through, and is thus separ 
ted from the paper. It may then, in either case, be cast into sticks 
or rolls, for use. —Idem. : 
