£56 
Lead 1 
by dissolving whiting or chalk in strong vinegar, well 
fined, may be substituted for sugar of lead. 
Sugar of lead, is coming greatly into fashion in doses 
of from one to three grains, in cases of hemorrhage of al- 
most every species. 
It has been proposed to substitute the pyroligneous 
acid for vinegar, and it may be done ; but whether it may 
be done as cheaply as by making vinegar out of cyder, 
or whiskey and sugar, I cannot say. The Messrs. Mol- 
lerats (Freres) at Paris, some years ago, presented a me- 
moir to the institute, in which they announced the making 
of strong vinegar from the pyroligneous acid, or the acid 
distilled from wood. It had the pungent smell of radical 
vinegar : one pint would make a gallon of vinegar of or- 
dinary strength, very clear, very pure, and very pleasant. 
I know T not the process. Dr. Bollman has made it in 
small quantities perfectly well. I have made it, not quite 
free from empyreuma, in the making of carburetted hy- 
drogen as a gas-light from wood, before my class. The > 
acid liquor that comes over when the wood is distilled 
being percolated through charcoal, then saturated with 
chalk, again percolated, and the acetite of lime so produc- 
ed distilled with sulphuric acid, will produce a pyrolig- 
neous acid, which however still retains more empyreuma, 
than can be borne to be used in cookery. 
The empyreuma perhaps w T ould be of no consequence 
in making a rough and impure sugar of lead for calico 
printers, any more than when it is used by them to make 
the pyrolignite of iron, for their blacks. But concerning 
all this I know little experimentally. It is a subject worth 
pursuing. 
Patent Mineral Yellozv. The fused muriat of lead, 
produced by decomposing common salt by means of 
litharge; triturating it in the form of a thin paste with. 
