Letter to Wilburt Cornell Davison, May 21, 1918
Letter to Thomas Archibald Malloch, May 18, 1918
Letter to Fielding Hudson Garrison, May 18, 1918
Letter to Henry Barton Jacobs, May 17, 1918
Letter to Henry Barton Jacobs, May 16, 1918
Extract from the Proceedings of the Royal Society of Medicine, May 15, 1918
Letter to John Young Walker MacAlister, May 10, 1918
Letter to Thomas Archibald Malloch, May 9, 1918
Letter to William Osler, May 8, 1918
Letter to John Young Walker MacAlister, May 5, 1918