1905) Infusorial Earth near Lake Windermere, B.C. 205 



Ottawa last spring, every seed containing - over a dozen of the 

 larvae. A fine melanic Bombus from the West was shown, but 

 the species could not be recognized. Specimens of Galernca 

 externa, collected by Mr. Norman Griddle at Aweme, Man , were 

 also shown. 



Mr. Gibson showed an inflate of the larva of Ecpantheria 

 deflorata which had been found feeding on violets at Niagara Glen, 

 Ont., by Mr. J. B Williams, of Toronto, and also exhibited 

 samples of currants and walnuts infested by the larvae of Plodia 

 interpunctella. 



A. G. 



INFUSORIAL EARTH NEAR LAKE WINDEMERE, B.C. 



At a meeting of the Natural History Society of British 

 Columbia held at Victoria, on the 19th November, Mr. Ander- 

 son exhibited specimens of infusorial earth taken from beneath the 

 surface soil of a dried-up lake about three miles west of Lake 

 Windemere. Prof. Shutt and he were asked last September, 

 whilst travelling through the Upper Columbia Valley, to visit the 

 place which is owned by a Mr. Eilis and partner. On reaching 

 the place, it was found to be in a long valley the lower end of 

 which was shut off by a natural dyke some twenty feet in height, 

 and from forty to fifty feet wide at its base. The extinct lake was 

 immediately above the dyke, fifteen to twenty acres in extent, 

 the valley containing some six hundred acres, they were told. The 

 lake site from all appearances, had been comparatively recently 

 covered with water, as the surface was thickly covered with water 

 plants resembling moss, probably a species of Myriophyllum, in a 

 semi-dried state. Ploughing had been attempted, but owing to 

 the nature of the plants alluded to, it was found impossible to do 

 so ; discing was then tried, but with equally poor success. On 

 account of the damp state of the vegetation, burning was also 

 found to be impracticable. Mr. Ellis expressed the belief that only 

 way to get rid of the trouble was to rake it all up and stack it. 

 Interspersed amongst the vegetation, and covering the ground, 



