Copy letter from Robert William Frederick Harrison to Major W H Horrocks, War Officer, Whitehall, SW 'Dear Major Horrocks, I am sending you the parcel of the Sleeping Sickness Reports No. IX that you ask for, with one or two over for contingencies. Perhaps, when you have dispatched them, it might be as well - if you can do so conveniently - to let us have here a copy of the list of names and addresses to which you are sending.' 19 February 1909