UNIVERSITY OF COLORADO MOUNTAIN LABORATORY 
At oe COLo., in Rocky pyeset aed Biggoon ,889 ft). No hot 
ather ; days btght a pleasant ; nights ummer temperature 
ie dears cooler than New York or cies ; oe Prva ales than Denver. 
Courses in Systematic Botany, Plant rg ee Algology, Field Biology 
(plant and animal). Field trips every d Occasional all gad excursions. 
The student may become familiar with he vegetatio on all the way from arid 
ain, through foothill and timber- poi mountain to alpine he eight. 
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. 
