UNIVERSITY OF COLORADO MOUNTAIN LABORATORY 
At qpeswants ete in the Rocky ee pe 8,889 ft). No hot 
eather ; days bright and essai nights an summer rn ak 
ie enees cooler than New York or Chic aie: ; ae are cooler than Der 
Coun in Systematic Botany, Plant t Ecology, Algology, Field ree log 
plant gaat ae animal). Field trips every oo: Occasional all day excursions. 
The student may become fatuiltar with the vegetation all the way ‘ols arid 
plain, through foothill and timber clad mountain to alpine height. 
Third session begins June 19, 1911. For pamphlet address the professor in charge, 
Dr. FRANCIS RAMALEY, University of Colorado, 
Boulder, Colo. 
- BOOKS FOR SALE 
Repertorium Botanices Systematicae (Guilielmo Gerardo Walpers) 
Vols. I-VI. Leipsic. 1842-1847. 
Bound in cloth boards, half kid. In good order. 
Will accept $8.00. 
Annales Botanices Systemicae (Guilielmo Gerardo Walpers) 
Vols. I--VII. London. 1848--1868. 
Bound in whole calf. In good order. 
Will accept $15.00 
Apply Director, Department of Agriculture, 
Kingston, Jamaica, B. W. I. 
