WILLIAM RUSSEL DUDLEY was born at Guil- 

 ford, Connecticut, March 1, 1849, and died at 

 Los Altos, California, June 4, 1911. He was 

 educated at Cornell University, graduating with the class of 

 1874, and taking his master's degree at the same institution 

 in 1876. He was instructor in botany in Cornell Univer- 

 sity from 1873 to 1876, and assistant professor of botany 

 from 1876 to 1892. On leave of absence from Cornell he 

 was acting professor of biology in the University of Indiana 

 in 1880, and he spent the year 1886-1887 studying at Stras- 

 burg and Berlin. He was appointed professor of system- 

 atic botany at Stanford University in 1893, a position which 

 he held from that time until December, 1910, when, on ac- 

 count of ill health, he voluntarily retired and became pro- 

 fessor emeritus. 



