Copy letter from Robert William Frederick Harrison, Assistant Secretary of the Royal Society; to P. F. Cowell Esquire, Secretary of the Institution of Electrical Engineers; 1 Albemarle Street, W. 'Science Abstracts. Referring to your letter of December 2nd, perhaps youwill be good enough to let me know whether the Institution wishes to receive the Grant of £200 as a whole, or by instalments, and, in the event of the latter course, the amounts desired.' 3 December 1918