Leveson Francis Vernon-Harcourt (1839-1907) drew on a distinguished career in canal and river engineering for this illustrated two-volume survey, here reissued in its enlarged 1896 second edition. Having started as an assistant to the civil engineer John Hawkshaw, Vernon-Harcourt was appointed resident engineer in 1866 for new works on London's East and West India docks. Later, as a consulting engineer, he specialised in the design and construction of harbours, docks, canals and river works, and he was elected professor of civil engineering at University College London in 1882. This publication covers the design and construction of tidal and flood defences, canals, locks, and irrigation works. Volume 1 covers the physical characteristics of rivers and estuaries, and the control of their flow through dredging and works such as weirs and breakwaters. Vernon-Harcourt also discusses the design of flood defences. His Harbours and Docks (1885) is also reissued in this series.

Leveson Francis Vernon-Harcourt (1839-1907) drew on a distinguished career in canal and river engineering for this illustrated two-volume survey, here reissued in its enlarged 1896 second edition. Having started as an assistant to the civil engineer John Hawkshaw, Vernon-Harcourt was appointed resident engineer in 1866 for new works on London's East and West India docks. Later, as a consulting engineer, he specialised in the design and construction of harbours, docks, canals and river works, and he was elected professor of civil engineering at University College London in 1882. This publication covers the design and construction of tidal and flood defences, canals, locks, and irrigation works. Volume 2 covers canal engineering, discussing the design and construction of canals and their associated works such as locks and lifts. Vernon-Harcourt also discusses ship canals and irrigation works. His Harbours and Docks (1885) is also reissued in this series.

This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1885 Excerpt: ... be landed on the island. Distance from the mainland, and difficulties in landing are the main obstacles in such cases, and were the causes of the preference for iron being given in the construction of the Roches-Douvres lighthouse. Bock Lighthouses. The really serious difficulties in lighthouse construction arise when a lighthouse has to be built on an isolated rock in the sea, at a distance from the mainland, where no shelter for the workmen can be provided, where the materials have to be landed on the rock as they are required, and more especially when the rock is covered by the tide, and the approach is difficult, uncertain, and even dangerous at times. The important considerations for these lighthouses are the level of the rock in relation to the sea level, the extent of the rock and its hardness, the exposure of the site, and its distance from the nearest suitable port for the conveyance of materials. In many cases the rock forming the foundation for the lighthouse is below high water, of which all the illustrations given are instances. (Plate 9, Figs. 1 to 9.) In some places the rock rises very little above low-water level, and is restricted in area, as at Bell Rock, Minot's Ledge, Des Barges, 364 Difficulties-in erecting Rock Lighthouses. pt. 1. and Ar-men; whilst at Spectacle Reef in Lake Huron, where there is no rise of tide, the rock is several feet below the surface of the water. Unless the rock is hard, compact, and without f1ssures, it is inexpedient to erect a lighthouse upon it, as the tower increases the surf on the rock, and by its weight on a small base, and the shocks which it transmits to its foundations, would soon impair any unsound portions of the rock. The strokes of the sea against Smeaton's Eddystone lighthouse caused the shaking ...

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This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.

This is an EXACT reproduction of a book published before 1923. This IS NOT an OCR'd book with strange characters, introduced typographical errors, and jumbled words. This book may have occasional imperfections such as missing or blurred pages, poor pictures, errant marks, etc. that were either part of the original artifact, or were introduced by the scanning process. We believe this work is culturally important, and despite the imperfections, have elected to bring it back into print as part of our continuing commitment to the preservation of printed works worldwide. We appreciate your understanding of the imperfections in the preservation process, and hope you enjoy this valuable book.