| Description | Mostly correspondence with suppliers of samples to the Clarendon Laboratory for Simon's post-war research into the specific heats of metals.
Correspondents include: Expanded Rubber Company Ltd; Mond Nickel Co; Tin Research Institute; Baker Platinum Ltd; Arthur D Little, Inc; Metropolitan-Vickers Co Ltd; Petrochemicals Ltd; British Non-Ferrous Metals Research Association; Du Pont de Nemours & Co and Palatine Tool and Engineering Co. |