The Farmer's magazine . at present) rude art, will bereadily admitted by any one who has ever lookedupon the miserable misshapen things that aremanufactured in the vicinity of the metropolis, andcalled bricks. This machine is the invention of Mr. Hall, anAmerican brick-maker, and is in general operationthroughout the United States. It is so simple andefficient in its construction and performance, thatit seems destined here also to take the lead. Itconsists of a pug mill ujjon an improved principle,to which the moulding ai)]3aratus is so attached,that the clay, after passing through the pug mil
The Farmer's magazine . at present) rude art, will bereadily admitted by any one who has ever lookedupon the miserable misshapen things that aremanufactured in the vicinity of the metropolis, andcalled bricks. This machine is the invention of Mr. Hall, anAmerican brick-maker, and is in general operationthroughout the United States. It is so simple andefficient in its construction and performance, thatit seems destined here also to take the lead. Itconsists of a pug mill ujjon an improved principle,to which the moulding ai)]3aratus is so attached,that the clay, after passing through the pug mill, isforced immediately into a series of moulds preparedto receive it. The bricks made by this machine are muchsounder and better than those made by hand; andwith the power of one horse and two men, from8,000 to 10,000 bricks can be produced per day. One of these machines can at any time be seenin full operation, by applying to Mr. FrederickRansome, at Fhnt Wharf, Ipswich, sole proprie-tors of the English patent. r Vfl4. MESSRS. BARRETr, EXALL, AND ANDREWES (OF READING) HAND THRASHING MACHINE AT WORK. These machines have now been before the agri- I value, and the highest prize that can be awarded tocultural world neaily three years ; and the many I the very respectable firm who invented it. An im-hundreds in use afford the best testimony to their | portant improvement has lately been introduced ii\ 10 THE FARMERS MAGAZINE. the construction of the concave or breasting, whichis made to expand or contract, so as to maintain axmiforai si)ace beUveen it and the drum, thus adapt- ing it to all kinds of grain or seed. The adjustingscrew is fitted with a pointer^ which shows on theindex how to set it for any particular grain. THE COMPOSITION OF ORGANIC MANURES. BY CUTHBERT W. JOHNSON, ESa., , Their Gases,—Nitrogen. In this paper I propose to investigate the com-])Osition of those portions of the organic fertiUzerswhich are composed of only gaseous substances,or are absorbed by t
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Keywords: ., bookcentury1800, bookidfarmersmagazine21, booksubjectagriculture
