The Domestic Encyclopaedia: Or, A Dictionary of Facts and Useful Knowledge, Comprehending a Concise View of the Latest Discoveries, Inventions, and Improvements, Chiefly Applicable to Rural and Domestic Economy ... (Google eBook)

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W. Y. Birch and A. Small, 1804 - Encyclopedias and dictionaries
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Page iii - Co. of the said district, have deposited in this office the title of a book, the right whereof they claim as proprietors, in the words following, to wit : " Tadeuskund, the Last King of the Lenape. An Historical Tale." In conformity to the Act of the Congress of the United States...
Page 225 - If the heat abates, or the spirits boil quicker than is directed, the solution will immediately stop, and it will afterwards be in vain to proceed with the same materials; but if properly managed the spirit of sal ammoniac will be seen gradually to descend from the mixture, and attack the copal, which swells and dissolves, excepting a very small quantity which remains undissolved.
Page 417 - When the fermentation moderated, I put the bung in loosely, lest stopping it tight might cause the cask to burst. At the end of five or six weeks, the liquor was drawn off into a tub ; and the whites of eight eggs, well beat up, with a pint of clean sand, were put into it : I then added a gallon of...
Page 231 - ... melt the hardest first, otherwise the most fusible will burn before the other is melted. 4. A sand-bath, or bright coals that do not flame, is the proper heat for oil varnishes : but give no more heat than is barely necessary to melt them. 5. The vessels should be glazed earthenware with a cover ; and new ones used, for copal varnish especially, every time. 6. When the oil and the resin are incorporated and well stirred together, add your hot oil of turpentine ; this should be about double the...
Page 227 - Watt told me it was acid. The common method of making drying oil, is to put about half an ounce of litharge to each quart of the oil : boil it not hastily or violently, but with a moderate and equal fire, for about two hours, scumming it. If it be boiled too hard it will be burnt, and become brown. Let this rest till all sediment has perfectly subsided, then separate the clean oil, which will grow the clearer and the better for keeping. When it is made perfectly drying, it will have a scum formed...
Page 352 - This power works the pump, and forces the water to ascend to the house through a pipe one inch in diameter, and which is 420 feet in length. At E is fixed a cord, which, when the bucket approaches to within four or five inches of its lowest projection, extends, and opens a valve in the bottom of the vessel through which the water is discharged.
Page 34 - Darwin's advice, a gnomon of thin brass was made to standover his nose, with half a circle of the same metal to go round his temples. These were covered with black silk, and by means of a buckle behind his head, and a cross-piece over the crown of his head, this gnomon was worn without inconvenience, and projected before his nose about two inches and a half. By the intervention of this instrument, he soon found it less inconvenient to view oblique objects with the eye next to them, instead of the...
Page 197 - Who, however, can afford to raise cider at that expense, except as matter of curiosity, to prove, that when the vital principle in vegetation is nearly exhausted, a superior care and warmth will still keep the variety in existence some time longer? It should be understood that the external air of Britain is rather too cold for the delicate fruits; which is the reason why, in the Orchardist, I lay such a stress on procuring warmth for the trees, by draining, shelter and manure.
Page 225 - Set the glass in a sand heat, so regulated as to make the contents boil as quickly as possible, but so gently, that the bubbles may be counted as they rise from the bottom. The same heat must be kept up exactly till the solution is complete. It requires the most accurate attention to succeed in this operation. After the spirits are mixed, they should be put to the copal, and the necessary degree of heat be given as soon as possible.
Page 34 - By the vise of this machine, he soon found it less inconvenient to view nil oblique objects, with the eye next to them, instead of the eye opposite to them. After this habit was weakened, by a week's use of the gnomon, two bits of wood, about the size of a goose-quill...