Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to H. Ratcliffe Esquire; the Leeds Phosphate Works Ltd., Leeds Asks H. Ratcliffe Esquire to provide the aforementioned 'proof' that he has been working as an analytical chemist for the past twenty years. Informs him that once Mr. Ratcliffe provides this he will submit his case to the [Reserved Occupations] Committee for consideration. 7 March 1916