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ALCOHOL
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CHAPTER IV.
Alcohol.
IN the previous chapters I have dwelt rather emphatically on the superiority of oil varnish as compared with spirit varnish.
However, no work on Varnish would be complete without some reference to alcohol.
Alcohol is a produce composed of carbon, hydrogen and oxygen; it is usually diluted with water in various quantities, by which its strength is determined.
Alcohol is or can be extracted from an innumerable variety of materials, in fact, anything containing sugar in any proportion can, by the process of fermentation, be used for the production.
The materials most usually employed are wines, roots, seed, etc. Alcohol is seldom
