A Summer Laboratory for Mountain Botany. 107 



Tolland is in the center of a most interesting botanical 

 field, the limits of which on the one side are the foothill districts, 

 on the other the Alpine heights, with the intervening montane 

 and sub-alpine regions, all within easy reach. At an altitude 

 of 8,889 feet, with a mean temperature for June and July about 



Fig. 3 — East l ake (above at left). This pond is a few hundred feet east of Tolland. It is a small 

 body of water of glacial origi □ ; a large morainal ridge is seen back of the lake. Concentric conation of 

 vegetation is well shown about the margin; (above at right) Corona, a small station of the "jNioftat 

 Road*' on the Continental Divide at Rollins Pass. A large snow-shed is necessary to protect from 

 drifting ;row. Here the vi itor may step from the train and find himself above timber-line in an 

 all ine region at an altitude of 1 1.600 feet. Excursion- from the laboratory will be nv>dc to thi point 

 for the study of alpine vegetation; (below at left) Corona Lake, a deep, rock-bottom, clear- water lake 

 at an altitude of 11,185 feet. The lake receives its water supply from the melting snow banks which 

 are present the year round in the large rock amphitheaters surrounding the lake on three sides. Vege- 

 tation studies of this and other mountain lakes are being made by the writers. A formation herbarium 

 has been prepared. Photogr ;ph taken in August, 1907; (below at right) South Boulder Canyon above 

 Tolland. An old corduroy road used by lumbermen some years ago. This moist, shaded canyon is 

 rich in herbaceous forms of mountain vegetation. 



15 degrees lower than that of New York City for the same 

 months, with plenty of warm, sunshiny days and clear, cool 

 nights, almost ideal conditions are offered for study, both 

 indoors and out. 



