And finally... (September 2019)

This month's letters include memories of working with Alistair Day and using his dynamic relaxation method, methods of maintaining lateral stability in houses, together with the continuing debate on subsidence versus settlement among other topics.

This month's letters discuss building safety regulations; lateral stability; the snow protection tunnel on the Baku-Tbilisi-Kars railway; safety factors for overturning; and recent articles on Alistair Day and Pier Luigi Nervi.

This article presents corrected solutions to the September 2019 'And finally...' question.