Transactions of the Society Instituted at London for the Encouragement of Arts, Manufactures, and Commerce, Volumes 19-20

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Page 56 - Licences for that purpose under the Hand and Seal of the Governor or Commander in Chief of the...
Page 282 - From this part to the top of the stem it is more elliptical, forming a considerable projection. The sides, from the...
Page 332 - ... scapement then referred to. I beg leave to remark, that the train of wheels in mine is prevented from pressing against the locking, by the whole power of the remontoire-spring; so that the balance has only to remove the small remaining pressure, which does away that objection, and also that of the disadvantage of detents, as this locking may be compared to a light balance turning on fine pivots, without a pendulum-spring ; and has only the advantage of banking safe at two turns of the balance,...
Page 227 - half a pint of water in which an ounce of salt has been dissolved ; and having boiled them half an hour, pour them into a proper vessel, and let them stand till the separation of the oil, water, and lime be made, as in the preceding process.
Page 213 - Lewis's process, without injuring its colour; and this solution was made in the common way. It was much darker coloured in itself, but produced scarcely any difference in effect when mixed with colour. By experiments with each of these solutions I ascertained the following facts, viz.:— " Every colour, and all the tints compounded from it, were more brilliant than corresponding tints and colours mixed with the best drying oils to be procured from the shops. "Colours mixed with amber, after having...
Page 467 - TRANSACTIONS of the Society instituted at London for the Encouragement of Arts, Manufactures and Commerce, with the Premiums offered in the year 1783.
Page 229 - Transactions of the Society of Arts, vol. xix. 3 P. 688. 4 The recipe is as follows : — " Take 4 parts of balsam of copavi and one of copal. Powder and sift the copal, and throw it by degrees into the balsam of copavi, stirring it well each time it...
Page 320 - ... launches over it with vast rapidity, without shipping any water. It is necessary to observe, that there is often a strong reflux of sea, occasioned by the stranded wrecks, which requires both dispatch and care in the people employed, that the boat be not damaged. When the wreck is reached, if the wind blows to the land, the boat will come in shore without any other effort than steering. I would strongly recommend practising the boat, by which means, with experience, the danger will appear less,...
Page 309 - One prisoner only has died (a woman aged sixty) in the month of October last. At the opening of the spring assizes, 1801, (the time of the greatest numbers) there was not one prisoner sick, or in the hospital ward. " By this statement it appears, that the proportion of deaths is so much below the common average, in the ordinary situations of life, that the healthiness of this abode may be said to be peculiar...

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