50 MISSOURI BOTANICAL GARDEN. 
ing done at the School, since the adoption of an elective 
policy by the University has enabled undergraduates to 
make more use of the School of Botany. 
Of the four assistants and instructors who have been 
connected with the School of Botany since its organization, 
besides the two who are still identified with its work, one 
was called to a college professorship of botany, one was 
engaged by the United States Department of Agriculture 
for the performance of physiological work, ete., in its sub- 
tropical laboratory, and the other two, after leaving the 
School of Botany, acted as botanical assistants at the Gar- 
den, from which they have been advanced to more respon- 
sible positions, — the plan at the University, as at the Gar- 
den, having been to consider these positions as transient, 
enabling incumbents to improve themselves during a limited 
connection with the School of Botany. 
Very respectfully, 
WILLIAM TRELEASE, 
Director. 
