Mr. HAMANN, when introducing the paper, took the opportunity to express his gratitude to Mr. Robert Campbell, B.Sc.(Eng.), A.M.Inst.C.E., consulting engineer, of New Zealand, to whom he owed the knowledge he had gained of earthquake effects. Mr. Campbell was formerly Professor of Civil Engineering at Canterbury (N.Z.) University College, and was a member of the New Zealand Building Regulations Committee, which had issued a report in June, 1931, only four months after the disastrous earthquake which had occurred in New Zealand that year. The committee had been re-assembled, and Mr. Campbell was one of its two technical officers, Mr. Hamann added that he had gained knowledge of the subject during the period in which he had assisted Mr. Campbell.