The increase to the present number of 1,195 titles has been
made through pleasant, if labourious, research as well as by
the generous help of Sir William Osier's friends. If all sug-
gestions as to titles have not been accepted, it is because the
authorship of many unsigned articles could not be established
and not from lack of appreciation of the kindness of those who
gave them.
I am particularly grateful to Dr. W. W. Francis, who was
the bearer of messages from Sir William, and who has given
valuable addenda.
My indebtedness is great to Dr. Thomas McCrae whose ad-
vice has been invaluable, and to Messrs. Lea and Febiger who
unearthed numerous unsigned editorials and gave me their
titles.
The kindness of Dr. Wilburt C. Davison in lending the
photograph (a gift of Sir William to Dr. Davison) which ap-
pears as a frontispiece, has placed me under lasting gratitude.
I take this opportunity to thank Dr. Henry M. Hurd for
help and encouragement; Dr. Harvey Gushing for addi-
tional titles and for helpful criticism; Dr. Fielding H.
Garrison for special use of the Library of the Surgeon-
General's Office ; Dr. Archibald Malloch for titles which would
have been unrecognized except for his knowledge of their

♦ Johns Hopkins Hosp. Bull., Bait, 1918, xxx, 219-233.
h



6 Preface

authorship ; Dr. Edward C. Streeter and Mr. Leonard L. Mac-
kail, Sir Dawson Williams and Sir Samuel Squire Sprigge;
Mr. John Parker and Mr. Samuel Hill, of the Peabody In-
stitute; Mr. Ashley, of the Library of Congress; and Miss
Charlton, Librarian of the Academy of Medicine, Toronto.
