132 THE AMERICAN MUSEUM JOURNAL 
secured at Laggan, and on July 8 we encamped just below the entrance 
to Ptarmigan Pass near timberline, which here is at an altitude of 7500 
feet above the sea. 
The alpine spring was at its height. The wet meadows, from which 
the snow had but lately disappeared, were yellow with butter-cups, the 
borders of the rapidly shrinking snow banks were starred with large white 
alpine anemones, on the drier slopes heather bloomed luxuriantly, and 
the rocks were covered with flowering Dryas. ‘The lakes were still ice- 
bound; the mercury reached the freezing point nightly, and we experi- 
enced several storms of snow and sleet. 
Our work in this indescribably picturesque region was unexpectedly 
successful, specimens of birds and plants and a large number of photo- 
graphs being obtained. Furthermore, the view from the heather-grown 
home of the Ptarmigan, which will form the actual foreground of our 
group, southward through the Ptarmigan Pass was of exceptional 
grandeur, even in this land of sublime scenery. ‘The successively fainter 
timber-clad shoulders of the gap leading to the Bow Valley are backed 
by Mt. Temple towering impressively, the central peak on horizon 
marked to the east by the spire-lke summits of the mountains about 
Moraine Lake and to the west by Mts. Hungabee, Lefroy and Victoria. 
The tourists who climb these mountains or penetrate the valleys 
lying between them may obtain a far more striking view of the range by 
crossing the Bow River at Laggan and ascending the mountains to the 
north in which the studies for our Ptarmigan group were made. 
Frank M. CHapMan. 
‘Tere has recently been installed in the Hall of Invertebrates, on 
the ground floor of the Museum, an interesting series of models showing 
the larval, pupal and adult stages in the life history of the mosquito 
which has been proven to cause the spread of malaria. ‘The models are 
75 times as great in linear dimensions as is the insect itself, and there- 
fore the volume is more than 420,000 times that of the living animal. 
On this scale, the adult mosquito stands one and one half feet in height 
and is three feet long. The spread of the wings is three feet and the 
mouth parts (beak) are one foot long. All the details of the ana- 
tomical structure of the animal have been reproduced with scientific 
accuracy and painstaking labor. A guide leaflet upon this model and 
the life history of the malaria mosquito is in course of preparation, 
