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SIR,-I have to thank Mr. Gordon Welch for his kindly criticism of my article which
appeared in the September issue. His remarks are in accordance with the mathematical
implications of the slope deflection of isolated members, but it is interesting to note that in Clause No. 17 of the preliminary draft revision of the Institution report, resisting moment of connections is made the criterion of pillar restraint. My assessment is on more conservative lines, for I do not put it forward for buildings with wooden joist floors, unencasedsteel, corrugated steel or fully glazed sides.
In some clauses of the Draft there seems to be an underlying assumption that steel will be encased and floors made fire-resisting ; but, in my opinion, Clause No. 17 needs strengthening in order to reward the design of rigid type buildings and penalise those with wooden floor joists, etc.
A VISIT to the town of Wisbech, "The Capital of the Fens," standing on the River Nene, almost half-way between Peterborough and Kings Lynn, will repay anyone interested in modern ferro-concrete construction. Here we have one of the most elegant bridges in this country spanning the river, unique in its design-the largest portal span in Britain-and close by the newly constructed Nene Quay River Wall which forms the subject
of this paper.
It is the duty of Local Authorities to interpret and administer the law relating to the control of building.