PEEFATORY NOTE TO THE SECOND EDITION. 



In this edition of the present volume, no clianges Imve been made 

 excepting sucli as may properly be called corrections of slight verl)al 

 mistakes and of errors of the press. Vol. II., comi)leting the Ltany of 

 Ci.liCornia, is pubb-shed contemporaneously witb ,1„ p,,,,,,^ ^ne, and in 

 that will be found a considerable number of additions and corrections to 

 Volume I., rendered necessary by fresh discoveries made by various zealous 

 collectors in the field. 



J. D. WHITNEY. 

 Camdridgk, Ma.ss., August 17, 1880. 



