Author: Helsby, C
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A PAPER by the present author under the title of "Modern Constructional Practice in Sewerage and Sewage Disposal” was read before the Institution in 1932, and it may be of interest to illustrate two recent examples of certain of the methods therein described, as applied at Cannock (Staffs.) and Ellesmere Port (Wirral) respectively. A.H.S. Waters
The author said that before showing the slides and dealing with the paper in general he wished to repair at least one of his crimes of omission. In dealing with the personnel of the job, unfortunately no reference had been made to Mr. W. K. Wallace, M.Inst.C.E., Chief Engineer of the London Midland & Scottish Railway, who was responsible for the preparation of the whole of the scheme when he was engineer of the Northern Counties Cormmittee. Although he left Belfast before the scheme had actually been put under way, most of the smaller bridges had already been designed and the general layout of the viaducts determined. Although he was not directly associated with the construction of the viaducts, his advice was always available and was frequently taken advantage of.
THE manufacture of Portland cement has made such advances during the last thirty years that the modern product bears little resemblance to its forerunners. Also our knowledge of the possibilities that lie in its uses and its behaviour under different conditions have been considerably extended. In this development Standard specifications have played an important part. The first British Standard Specification for Portland cement was published in 1904, and the last in 1931, with five revisions in between these dates. Alan Moncrieff