MR. LANCASTER presented the paper. He said that as soon as Mr. Richards and himself had commenced the preparatory work it had become very obvious that without illustration to a degree impracticable in the printed form, the paper would tend to become a sea of words. The Authors had seen the project develop on site before their eyes, an advantage to them-but a disadvantage to those reading the published account.
AFTER Mr. Andrews had presented his paper, the PRESIDENT, expressing the thanks of the meeting and of the Institution to the Author, said he was sure members had found the slides interesting, and they had helped to make even clearer what was a very well written paper. The slides were exceptionally good, and the coloured ones particularly had added to the value of the additional information Mr. Andrews had given.
THE CHAIRMAN first conveyed the apologies of the President, Mr. J. Guthrie Brown, for his inability to be present. He had to attend another function that evening and he had asked that his apologies be tendered to the meeting.
THE introductory summary of the work of previous investigators shows that an increase in the torsional strength of concrete could best be gained by reinforcing the beam with a complicated network of spirals and longitudinal bars. Such systems are uneconomical because of their demands upon workmanship and materials. The paucity of information available on the design of concrete sections in torsion was criticised by members of the Tnstitution of Civil Engineers in 1951. Robert Humphreys