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A SINGLY reinforced rectangular beam designed in accordance with the provisions of the cbde of practice for A 1:2:4 concrete with steel to B.S.S. No. 15 stressed to 20,000 lbs./in.2, has a value for Q (= MR/bd2) at working load of from 130 to 206, according to the quality of the concrete. If such a beam is tested to destruction the ultimate value of Q is unlikely to reach two and a half times the above values.
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THE PRESIDENT (Mr. W. K. Wallace, M.Inst.C.E., M.I.Struct.E.) described the paper as unique; and congratulated Mr. Snow on the able manner in which he had presented it.