. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. THE CIVIL ENGINEER AND ARCHITECTS JOURNAL, 29 REVIE'WS. Theory, Practice ami Architecture of Bridget. The thonj hy James Hann, nf King's College, and the practical and archilecliiral treatises iy William Hosking, , &c., Vol. I. London: John Weale. Our present remarks will be confined to Mr. Hughes's paper on the " Foundations of Bridges," as we have previously noticed most of the other articles. Mr. Hughes commences his paper by taking a review of v
. The Civil engineer and architect's journal, scientific and railway gazette. Architecture; Civil engineering; Science. THE CIVIL ENGINEER AND ARCHITECTS JOURNAL, 29 REVIE'WS. Theory, Practice ami Architecture of Bridget. The thonj hy James Hann, nf King's College, and the practical and archilecliiral treatises iy William Hosking, , &c., Vol. I. London: John Weale. Our present remarks will be confined to Mr. Hughes's paper on the " Foundations of Bridges," as we have previously noticed most of the other articles. Mr. Hughes commences his paper by taking a review of various methods of laying foundations by mean of caissons, next he explains tlie manner of building liridges on dry land, the stream being afterwards diverted from its old course and made to pass imder the new bridge,âhe then explains the method of building piers called by (ho French encaissemiiit, practised by Belidor. Afterwards comes the method of laying, in deep water, ioumlations of piers, bridges, &c., without the aid of a coffer dam. As this portion of the paper will best explain the talents and capacity of its author, we shall give a lengthened extract, accompanied by tlie wood engravings, liberally furnished to us by the publisher. The first work of the kind I shall describe was projected by Mr. Telford, aiul executed under the suiHriutcndence of Mr. David Ilcniy, at Harbour, in Ayrshire, N. I!.; and as the mass of stones used in the founda- tion was tliere set in toleraldy regular order under water, without the aid oj coffer-dam, or caisson of any kind, there can be no douljt of the same system being equally jiracticahle in many cases of bridge foundations. The stones at Ardrossan were of veiy large superficial (hmensions, varjing from six to ten feet long, and tl\ree to five feet wide ; they were first held fast by an implement, technically called nippers or devil's claws, auti were then lowered by a crane through a depth of six or eight feet of water
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