Typed Letter Signed to acclaimed pathologist Dr. William G. MacCallum
London: 1930. 1 page, 10 x 8 inches, on "Royal Society of Tropical Medicine and Hygiene" letterhead (with a mosquito logo), London, April 11, 1930, concerning the Sir Patrick Manson Memorial, in full: "It is indeed good of you to send a contribution to the Memorial to Sir Patrick Manson. I am glad you think the plan a good one and I am entirely with you in thinking that it is one of the best deserved memorials of all times..... More