 When the Committee was replaced by the Imperial Munitions Board in December 1915, he was appointed as one of its members, and continued to serve as such until 1919.In 1915 he was appointed by the Canadian Government to chair a Commission to inquire into the feasibility of refining zinc and copper in Canada, and he also conducted an inquiry into what coke oven capacity existed in Canada for the production of toluol (a key component of trinitrotoluene).He was Chairman of the Inventions Committee in Canada.