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Scientific American, Vol. 26, No. 1 (1872) (1872)

leaf 2

An illustration from Scientific American, Vol. 26, No. 1 (1872), 1872, leaf 2
pleasure of presenting engravings thereof, with additional out of order and difficult to retain in action. In this inven- By the adoption of this simple process in cities, all com- particulars. tion, a tremolo of prismatic or other suitable form is hung in munications between the sewers and the… … zer. tion, which is stated by a cotemporary to have given excel- This form of earth closet has been extensively introduced neighborhood avoided; every case of epidemic disease can be lent results in all respects, being very economical of fuel, in London, where a corporation, known as the “ Sanitary…

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