110 
INSURANCE OF GREENHOUSES 
It will be of general interest to know that the glass of the large 
Conservatory Ranges Nos. 1 and 2 in the New York Botanical 
Garden has recently been insured against all direct loss or damage 
by wind-storms, cyclones, or tornadoes, covering also breakage 
by hail, at its full value, including cost of resetting. The rate 
is 114 per cent. for a period of three years, and the policy is 
issued by the Globe & en Fire Insurance Company. 
N. L. Britton, 
Director-in-Chief. 
CONFERENCE NOTES 
The April ees of the Scientific Staff and Registered 
Students of the New York Botanical Garden was held April 7. 
The topics for = ae were presented by Dr. P. A. Ryd- 
berg and Dr. . Sea 
Dr. Ry fad ae it advisable to put in record some 
of his pee during several trips to the Rocky Mountains 
under the head of ‘ Hake a Notes on the Rocky 
Mountain Region.” He presented before the shed the 
first part of his discussion of the eae region e Rockies. 
The alpine region roughly speaking is the region aan the 
perpetual snow and the timber-line. A perpetual snow-line cannot 
be spoken of in the southern Rockies; even the highest peaks do 
not have a perpetual snow cap, like for instance Mt. Shasta or 
Mt. Hood. It is probably due to the amount of moisture and 
precipitation. Snow, if present, is in the form of snow-drifts or 
small glaciers. The amount of snow does not always depend 
upon the height of the mountain. The Snowy Range of Colorado 
has more snow than the much higher Gray’s Peak, Sierra Blanca, 
or Mt. Massive. In the Canadian Rockies and the Selkirks the 
conditions are different and more like the Alps. The peaks have 
perpetual snow caps and glaciers extend far into the valleys. In 
northern Montana is found the only glacier regions of the Rockies. 
The lower limit of the alpine region is the timber-line, which 
