ERRATA FOR VOLUME VI. 



INTRODUCTION. 



Page 13, line 26— fur " Helen's " read " Helens." 



PART I. 



Page 29, line 7— for " 4GO " read " 450." 



117, lines 13 and 14 — for " there by the Medical Department of the Army " read "at the Presidio, near San Francisco 

 by tho United Stales Coast Survey." 



