Cyclopædia of useful arts & manufactures, ed. by C. Tomlinson. 9 divs, Volume 61852 |
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action alumina block boiling bottom calcined called canal carbonate carbonic acid chloride clay colour consists containing copper covered crystals cylinder decomposed dissolved edge employed feet fixed frame gallic acid glass grain grooves ground hammer heat holes horizontal hydrate hydrochloric acid inches instrument iron kiln length lever lime limestone machine magnesia manganese manufacture marble means mercury metal mineral mixed mortar motion mould nails naphtha narcotine needle nitrate nitric acid obtained oolite operation oxalic acid oxide oxygen paper passed phosphoric acid phosphorus piece pipe placed plane plaster plate platinum porcelain portion potash prepared produced pulp quantity removed rollers salt sand screw shaft sheet side silica silver soda soluble solution steam stone string substance sulphate sulphuric acid surface temperature thick tion trough tube upper vein vertical vessel wall washed weight wheel wire wood wooden
Popular passages
Page 439 - Amsterdam to the farthest point of Sweden, from Dunkirk to the southern extremity of France, one is served at every inn from English earthenware. The same fine article adorns the tables of Spain, Portugal, and Italy ; and it provides the cargoes of ships to the East Indies, the West Indies, and America.
Page 218 - Honduras, the mahogany expands to so giant a trunk, divides into so many massy arms, and throws the shade of its shining green leaves, spotted with tufts of pearly flowers, over so vast an extent of surface, that it is difficult to imagine a vegetable production combining in such a degree the qualities of elegance and strength, of beauty and sublimity.
Page 304 - Its penetrating and tenaceous odour may affect the nerves, causing some persons to faint, and sometimes occasioning convulsions. It is so powerful that, according to Chardin's authority, the hunter is obliged to have his mouth and nose stopped with folds of linen when he cuts off the follicle from the animal, as otherwise the pungent smell would cause haemorrhage, sometimes fatal.
Page 439 - English ware. Spain, Portugal, and Italy are supplied with it; and vessels are loaded with it for the East Indies, the West Indies, and the continent of America.
Page 339 - One of these being put into the small tube that projects from the side of the opium pipe, that tube is applied to a lamp, and the pill being lighted, is consumed at one whiff or inflation of the lungs, attended with a whistling noise. The smoke is never emitted by the mouth, but usually receives vent through the nostrils, and sometimes by adepts, through the passage of the ears and eyes.
Page 218 - Cedar, impresses the spectator with the strongest feelings of Its firmness and duration. In the rich valleys among the mountains of Cuba, and those that open upon the bay of Honduras, the Mahogany expands to so...
Page 398 - ... preparing sheets for use when dry for travelling, &c., I have discarded the use of previously waxed paper, thus getting rid of a troublesome operation, and proceed as follows : — Taking a sheet of my iodized paper, in place of floating it (as for the wet process) on the sensitive bath, I plunge it fairly into the bath, where it is left to soak for five or six minutes ; then removing it, wash it for about twenty minutes in a bath, or even two of distilled water, to remove the excess of nitrate...
Page 398 - ... particularly in handling very large sheets, is as follows: Pour a thin layer of water (just sufficient not to flow over the sides) upon the lining paper, after you have extended it on your glass or slate, and then lay down your sensitive paper gently and by degrees, and floating as it were on this layer of water ; and when extended, taking the glass and papers between the finger and thumb, by an upper corner, to prevent their slipping, tilt it gently to allow the interposed water to flow off...
Page 377 - The pearls being placed in the pits which we have already mentioned, and the point of the spindle adjusted to them, the workman presses on the wooden head of the machine with his left hand, while his right is employed in turning round the bow handle.
Page 377 - ... inches long. In the upper flat surface of this machine, holes or pits are formed to receive the larger pearls, the smaller ones being beat in with a little wooden hammer. The drilling instruments are spindles of various sizes according to that of the pearls ; they are turned round in a wooden head by means of a bow handle to which they are attached.