A provisional list of recommendations based upon the Draft Report prepared by Prof. Fowler served as a guide for discussion and action by the committee. The recommendations, together with a digest of the discussion and the action taken, are reported below as a record of the proceedings of Commission 14.

1. It is recommended that two or more observers should investigate the possibility of simplifying the specification for the production of the primary standard by using a source that will give well-defined fringes with retardations greater than 200,000 wave-lengths. No action taken.