Identifier: landsofslavefree00murr (find matches)
Title: Lands of the slave and the free: or, Cuba, the United States, and Canada
Year: 1857 (1850s)
Authors: Murray, Henry A. (Henry Anthony), 1810-1865
Subjects: Slavery
Publisher: London, New York, G. Routledge & co.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ible to convey any idea of this stupendous workwithout figures; but I will endeavour to draw upon yourpatience as little as possible. My authority is a workpublished by Mr. Schramke in English, French, and Ger-man, and full of explanatory details and plans, &c. Mr.Schramke being one of the corps of engineers employed uponthe work, I conclude his statements are peculiarly accurate,Long discussions, patient investigations, and careful surveys,combined to fix the position for commencing operations uponthe Croton river, forty and a half miles from New York, andfive miles below a small lake of the same name. All thepreliminaries had been hitherto carried on under the superin-tendence of Major Douglas, professor of engineering at theMilitary Academy at West Point; but, owing to some dis-agreements, Mr. J. B. Jervis was the engineer eventuallyselected to carry out the undertaking. It is but just to men-tion his name, as the skill exhibited entitles him to lasting Vide sketch of Aqueduct.
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CROTON AQUEDUCT. 69 fame. By the construction of a substantial clam, the waterwas raised 40 feet, and a collecting reservoir formed, of500,000,000 gallons, above the level that would allow theaqueduct to discharge 35,000,000 gallons a day. Thisstupendous work consists of a covered way seven feet broadand eight feet and a half high; in its course it has to passthrough sixteen tunnellings, forming an aggregate of nearly7000 feet; to cross the river Harlem by a bridge 1450feet long and 114 feet above tide water, and to span variousvalleys. The receiving reservoir outside the town gives awater surface of 31 acres, and contains 150,000,000 gallons;it is divided into two separate compartments, so that eithermay be emptied for cleansing or repair. From this point thewater is carried on, by three 36-inch pipes, to the distribut-ing reservoir, which is 386 feet square and 42 feet deep, butrilled generally to the depth of 38 feet, and then holding21,000,000 gallons. From this point it radiates

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