Some Principles of Law Relating to Conditons of Contract. Discussion on Mr. B. C. P. Kehoe's Paper.

THE PRESIDENT (Professor J. Husband, F.R.C.Sc.I., M.Inst.C.E.) commented on the great interest of the subject of the paper, and said that probably the majority of the members had had to deal with underpinning in some form or another. He had had a good many underpinning jobs to look after, and Mr. Muirhead had put forward in the paper some exceptionally interesting examples of that class of engineering.

I propose in this address to invite your consideration of some of the principles upon which our present day structural design is based and to remember some of the scientists of bygone days to whom we are indebted for the discovery of these principles. A.A. Fordham

This month's letters cover legislation for design checks, embodied carbon of modular construction approaches, and assessment of masonry buildings for earthquake resilience in New Zealand.