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Van Nostrand's Science Series (Volume 18) downloadPDF, EPUB, MOBI

Van Nostrand's Science Series (Volume 18) downloadPDF, EPUB, MOBI

Van Nostrand's Science Series (Volume 18). Books Group

Van Nostrand's Science Series (Volume 18)
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Author: Books Group
Page Count: 26 pages
Published Date: 31 Dec 2011
Publisher: General Books
Publication Country: Miami Fl, United States
Language: English
ISBN: 9781234894382
Download Link: Van Nostrand's Science Series (Volume 18)
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Book may have numerous typos, missing text, images, or index. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. 1875. Excerpt: ... SEWERAGE AND SEWAGE UTILIZATION. The water is brought into the town to be soiled, and it must be removed; and besides this dirty water which has to be removed, there is the surface water, and the subsoil water that have to be removed also; together with a quantity of refuse of all sorts, with various impurities from manufactories, from slaughterhouses, from animal sheds, together with slops from private houses, and so on. This impure water is carried away from towns by means of pipes, known as sewers, and I want at once to explain to you in a few words, the difference that is to be kept in sight between a sewer and a drain. A sewer is a pipe for removing impure water, water that has been fouled; a drain, as Mr. Bailey Denton said in a letter to the Times, is meant to take the wetness out of soil; it is meant to dry the soil--it is not meant to carry away impure water. As these sewers are to carry away impure water, it is perfectly plain they must be impervious to water, or they may, on certain occasions, let it leak out into the subsoil of the town underneath the houses, and also into the wells, if there are any. If they are impervious, the water of the soil, the subsoil water at any rate, won't get into them and so they will not act as drains. Now you will see directly why it is necessary to drain the subsoil underneath the streets and houses. That it is necessary I can show you in a half a minute. It has been perfectly clearly shown by Dr. Buchanan, from statistics of the death-rate of certain towns that have been sewered, that in those towns which have had sewers so constructed that the subsoil water of the town has been lowered, the death-rate from consumption has increased in a most extraordinary manner. In the case of certain towns the death-rate from consumption has been r...

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