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Possibly, because it is under revision, we have not had many comments in the past on BS449. However, a reference to the forthcoming revision in the paper by Johnson and Smith (September 1975) has drawn the following from Mr. R. Taylor: It is interesting to note that in their paper concerning deflections of composite beams, Johnson and Smith, quoting from the forthcoming revised BS449, state that the final deflection of a beam below the level of supports should not exceed span/250, or for a cantilever length/l25. Since this particular limitation is from the appearance standpoint, the relative values quoted for a beam supported at each end and for a cantilever seem logical. Verulam