Cushing's notes, 1890
Letter to Henry Pickering Bowditch, February 28, 1890
Letter to William Osler, January 21, 1890
Cushing's notes, 1888-1890
Letter to William Osler, February 10, 1890
Notes from Osler's pocket notebook, 1890
Bibliotheca Osleriana
Bibliotheca Osleriana
Letter to William Osler, March 21, 1913
Notebook 20
Notebook 19