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I proceed thus: After heating the suspected substances in twice their weight of alcohol, I drop the liquid gently into a vase with edges a little elevated, at the bottom of which is a piece of paper on which I have placed my tests. If my paper retains its color, there is no poison; if it changes, the poison is there.
The application of variously colored enamels and the heating are then effected as in ordinary glass painting. The same process may be applied to marble, wood, stone, lava, canvas prepared for oil painting, earthenware, pure or enameled iron.
No further opposition was made, the French seeking shelter in the neighbouring woods, where they were not likely to be followed. A few had been cut down while defending the fort, while others, unable to make their escape, were taken prisoners. The fort was found to contain six guns landed from the ship, as also a furnace for heating shot.
No don't touch port! heating! Sherry and water." The house-door had closed upon Mr. Squills, that gentleman having promised to breakfast with me the next morning, so that we might take the coach from our gate, and I remained alone, seated by the supper-table, and revolving all I had heard, when my father walked in.
Two subdivisions at the end of the tepidarium lead to the calidarium, adjoining which is the heating apparatus, fitted with two of Messrs. Constantine's "Convoluted" stoves. Access to the stokery is gained by a passage at the end of the tepidarium. The shampooing room is placed off the cooler end of the tepidarium, dwarf walls separating it from the latter apartment, as also from the lavatorium.
But, short as is the time that has elapsed since the appearance of these papers, you will find that progress has been made, and that a still higher efficiency is now claimed. When I first wrote on this subject, I relied upon some data which led me to suppose that the heating power of ordinary coal gas was higher than it really is. At our last meeting, Mr.
The quantity of water evaporated during the service time of 10½ hours was found to be about 1,600 kilogs., consequently about 800 kilogs. steam was absorbed by one quantity of soda, the weight of which was ascertained at about 1,100 kilogs. The averaging heating surface is 9.8 square meters; the difference of temperature between soda lye and water was toward the end only 3 deg.
The clouds not only promote the precipitation which takes place in this region, but they also cause the rains to fall on places where they are most required, shading the surface from which the heating rays of the sun are to be excluded, and thus giving tone to the atmospherical circulation of the world and vigour to its vegetation.
It had the same basement, the same general disposition of rooms, the same abundance of stairs and paucity of baths, the same chilly draughts and primeval devices for heating, and the same superb disregard for the convenience of servants.
And this fact also was of the greatest importance in making successful the final use of carbon, because without the subjection of the carbon to the heating effect of current during the formation of the vacuum, the presence of occluded gases would have been a fatal obstacle.
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