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" ... 728. Such a trough is best made of japanned copper, and supported in a wooden frame, so as to stand about 39 inches from the ground. Two depressions, like small wells, should be made in the shelf, each about seven inches long, two wide, and one and... "
Chemical Manipulation: Being Instructions to Students in Chemistry on the ... - Pagina 316
door Michael Faraday - 1842 - 664 pagina’s
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Encyclopaedia Americana: A Popular Dictionary of Arts, Sciences ..., Volume 7

Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1831
...provided with a stop-cock, by which the water may be drawn off when it has become acidified or dirty. Such a trough is best made of japanned copper, and...wooden frame, so as to stand about 39 inches from the floor: or it and the neater sort of apparatus, from the dust and dirt which are constantly moving and...
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Encyclopędia Americana, ed. by F. Lieber assisted by E. Wigglesworth (and T ...

Encyclopaedia Americana - 1831
...water may be drawn off when it has become acidified or dirty. Such a trough is best made of jiipanned copper, and supported in a wooden frame, so as to stand about 39 inches from the floor ; or it may be made of wood, and lined with sheet leai Unless the establishment is very extensive,...
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Encyclopędia Americana: A Popular Dictionary of Arts, Sciences ..., Volume 7

Francis Lieber, Edward Wigglesworth, Thomas Gamaliel Bradford - 1835
...provided with a stop-cock, by which the. water may be drawn off when it has become acidified or dirty. Such a trough 'is best made of japanned copper, and...wooden frame, so as to stand about 39 inches from the floor; or it may be made of wood, and lined with sheet lead. Unless the establishment is very extensive,...
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Encyclopędia Americana: A Popular Dictionary of Arts, Sciences ..., Volume 7

Francis Lieber, Edward Wigglesworth - 1838
...with a stop-cock, by which the water may be drawn off when it has become acidified or dirty. Such n trough is best made of japanned copper, and supported...wooden frame, so as to stand about 39 inches from the Boor; or it may l)e made of wood, and lined with sheet lead. Unless the establishment is very extensive,...
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The Development of Chemistry, 1789-1914: Chemical manipulation

Michael Faraday - 1998 - 664 pagina’s
...in width, it will be found sufficiently large for almost every purpose. 318 WATER PNEUMATIC TROUGH. 728. Such a trough is best made of japanned copper,...about 39 inches from the ground. Two depressions, like smsill wells, should be made in the shelf, each about seven inches long, two wide, and one and a half...
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