The Manufacturer and Builder Volume 2

The Manufacturer and Builder Volume 2

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1870 edition. Excerpt: ...pot or cup, and is usually supposed to bo genuine coffeegrounds. It has, in fact, one positivo advantage, it assists tho settling of the coffee-grounds, and thus, if it makes the coffee weaker, it renders it also clearer. The only way to detect tho fraud is to break some of the unroasted beans and inspect their interior; or, better still, to chew some of them. To make assurance doubly sure, it has been seriously recommended that every coffee-bean should be broken in two and the interior examined with tho microscope! Fastening Iron in Stone. A WRITER strongly recommends the use of zinc instead of lead for fastening iron railings into stone. It is well known that iron cemented with lead is consumed by rust, very rapidly and destroyed. The zinc, however, establishes a galvanic circuit with the iron, and being positive to the iron, sustains all the chemical actiou, and becomes oxidized, while no rust forms upon tho iron. While with lead the opposite' takes place, it makes also with iron a galvanic combination; but tho iron being positive compared with the lead, it undergoes the chemical action, is oxidized, and protects the lead at its own expense. An Improved Hand Glass. GARDENERS who have experienced the trouble of storing the ordinary bulky and unhandy cloth-covered boxes used for starting early vegetables, and the numberless annoyances these ugly-looking things occasion, will appreciate the neat little arrangement for a handglass which we illustrate above. It consists of two frames of galvanized iron for holding two panes of glass, jointed or hinged together at the back, and connected at the ends by a triangular piece of cloth that allows the sides to be opened to the required degree. It needs no attention after being placed over the seeds or...
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Product details

  • Paperback | 582 pages
  • 189 x 246 x 30mm | 1,025g
  • Miami Fl, United States
  • English
  • black & white illustrations
  • 123657740X
  • 9781236577405