HEALTH SCIENCES STANDAHU HX64095134 R1 54.G24 G24 Michael Freebem Gav Columbia urgeon£ t 0°/: Columbia ^- MICHAEL FREEBERN GAVIN A BIOGRAPHY: EDITED BY HIS SON WITH AN INTRODUCTION BY CLARENCE JOHN BLAKE, M.D. PRIVATELY PRINTED AT THE RIVERSIDE PRESS CAMBRIDGE; MDCCCCXV "ft \