THE CHAIRMAN introduced the authors, Mr. Easton and Mr. Lewis, who presented the paper.
It must be true to say that every trade and profession offers some advantages and disadvantages to its nembers, but undoubtedly one of the attractions of structural engineering is the immense degree of variety that arises in its work and problems. Clifford E. Saunders
THE PRESIDEST, introducing the authors, said that the paper was the result of the combined efforts of a mechanical and a civil engineer. Their work illustrated the valuable way in which the Building Research Station, like so many research establishments, had extended its operations since the war.