The Lay-out and Construction of Highways. Discussion on Mr. W.J. Hadfield's Paper

IT is proposed in the following pages to write generally on the theoretical and practical aspects of elastic stability. No doubt part, of the ground covered is already familiar, but it is considered necessary to include the elementary principles, so that there may be as few gaps as possible in the argument. Thus we may have some idea of the theoretical effects of various combinations of loading and end conditions and it may then be seen to what extent we are justified in relying on any particularly fixed or stlereotyped method of design for such a wide range of conditions. A. Noel Procter

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.

This career-spanning book offers insight for anyone venturing into engineering, and how to build on the life lessons you learn along the way, writes Patrick Augustin.