Various manuscripts relating to the investigations into reforms of the standards. There are draft reports of the Standards Commission and a duplicate report of the Commissioners for the restoration of standards of weights and measures. The volume includes Airy's remarks on a proposed decimal system, questions put to civil engineers, abstracts from the standards papers, proposed metric systems, German weights and measures, and correspondence on printing the report. There is also correspondence with J.D. Forbes, W. Simms and S.H. Christie.