Vlll 



Preface 



a volume of itself. The principal works and their authors are 

 discussed in the chapter on the History of Ichthyology, and 

 with this for the present the reader must be contented. 



The writer has hoped to make a book valuable to technical 

 students, interesting to anglers and nature lovers, and instruc- 

 tive to all who open its pages. 



DAVID STARR JORDAN. 



PALO ALTO, SANTA CLARA COUNTY, CAL., 

 October, 1904. 



