Amateur work, illustrated, Volume 1

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1773 - Handicraft
 

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Page 312 - A Treatise on Mathematics, as applied to the Constructive Arts, illustrating the Various Processes of Mathematical Investigation, by Means of Arithmetical and Simple Algebraical Equations and Practical Examples, also the Methods of Analysing Principles and Deducing Rules and Formula;, Applicable to the Requirements of Practice,
Page 312 - A Practical Treatise on the Joints Made and Used by Builders, in the Construction of various kinds of Engineering and Architectural Works, with Special Reference to those Wrought by Artificers in Erecting and
Page 315 - for this purpose it can be kept in a kettle on a portable furnace. It is said that one pint of this mixture will cover a square yard upon the outside of a house, if properly applied. It retains its brilliancy for years.
Page 21 - of ammonium in the proportion of three parts of the former to one part of the latter, with sufficient sulphuric acid to decompose the ammonium, and bring the mixture to the consistency of rich milk. The mixture should be made in a receptacle of lead, and kept in a bottle of the same material, or
Page 315 - within a large one filled with water. Add five gallons of hot water to the mixture, stir it well, and let it stand for a few days, covered from dirt. It should be
Page 287 - high, but only to fall again. Some have even cried, 'Eureka !' to the public; but the moment others looked at their discovery, and compared it with the real thing, ' inextinguishable laughter shook the skies.' At last, despair has succeeded to all that energetic study, and the varnish of Cremona is sullenly given up as a lost art.
Page 506 - to serve as bridges for the strings, and withinside, at each end, glue two pieces of beech about an inch square, and of length equal to the width of the box. Into one of these bridges fix as many pegs, such as are used
Page 483 - I charge thee, fling away ambition, By that sin fell the angels ?
Page 287 - inextinguishable laughter shook the skies.' At last, despair has succeeded to all that energetic study, and the varnish of Cremona is sullenly given up as a lost art. I have heard and read a great deal about it, and I think I can state the principal theories briefly but intelligibly.
Page 357 - of alum dissolved in 2 gallons of water is to be applied in a similar manner over the coating of soap. The soap and alum mutually decompose each other and form an insoluble varnish which the rain is unable to penetrate.

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