Malt liquors, after they are delivered by the brewer to the retail-dealer, are still destined to undergo various mutations before they reach the consumer. It is a common practice with the retailers of beer, though it be contrary to law, to mix table-beer with strong beer; and, to disguise this fraud, recourse is had to various expedients. It is a well known property of genuine beer, that when poured from one vessel into another, it bears a strong white froth, without which professed judges would not pronounce the liquor good. This property is lost, however, when table-beer is mixed with strong beer; and to restore it, a mixture of what is called _beer-heading_ is added, composed of common green vitriol, alum, and salt. To give a pungent taste to weak insipid beer, capsicum and grains of paradise, two highly acrid substances, are employed; and, of date, a concentrated tincture of these articles has appeared for sale in the prices-current of brewers’-druggists. To bring beer forward, as it is technically called, or to make it hard, a portion of sulphuric acid is mixed with it, which, in an instant, produces an imitation of the age of eighteen months; and stale, half-spoiled, or sour beer, is converted into mild beer, by the simple admixture of an alkali or an alkaline earth; oyster-shell powder, and subcarbonate of potash, or soda, being usually employed for that purpose. In order to show that these deceptions are not imaginary, Mr. Accum refers to the frequent convictions of brewers for those fraudulent practices, and to the seizures which have been made at different breweries of illegal ingredients—a list of which, and of the proprietors of the breweries where they were seized, he has extracted from the Minutes of the Committee of the House of Commons, appointed to Inquire into the Price and Quality of Beer. It may be observed, that while some of the sophistications of beer appear to be perfectly harmless, other substances are frequently employed for this purpose which are highly deleterious, and which must gradually undermine the health of those by whom they are used. Many other of the most ordinary articles of consumption are mentioned by our author as being the object of the most disgusting and pernicious frauds. Tea, it is well known, from the numerous convictions which have lately taken place, has been counterfeited to an enormous extent; and copper, in one form or another, is the chief ingredient made use of for effecting the imitation.