148 The Ottawa Naturalist. [Nov. 



which we have any evidence.' and the fauna, with its seals and 

 Saxicava, is certainly Arctic. The time which has elapsed since 

 the retreat of the sea from this area probably is approximately 

 the same as that required by Niagara for cutting its gorge, that 

 is. as variouslv estimated, from 7,000 to 50,000 vears." 



A Simple Method of Water Purification. By G. G. 

 Nasmith. Esq., Ph.D., and R. R. Graham, Esq., M.B. ^A level 

 teaspoonful of chloride of lime should be rubbed into a teacup 

 of water. This solution should be diluted with three cupfuls of 

 water, and a teaspoonful of the whole quantity should be added 

 to each two gallon pail of drinking water. This will give .4 or .5 

 parts of free chlorine to a million parts of water and will in ten 

 minutes destroy all typhoid and colon bacilli or other dysentry- 

 producing organisms in the water. Moreover, all traces of the 

 chlorine will rapidly disappear. 



This method of purification has been tested with Toronto 

 Bay water inoculated with millions of bacteria. Every germ 

 has been destroyed and it has been unnecessary to boil the water. 



This method should be very valuable for miners, prospectors, 

 campers, and those living in summer resorts where the condition 

 of the water might not be above suspicion. Ontario Board of 

 Health. Circular No. 35. 



Nest of Wilson's Snipe. The following note appeared in 

 Forest and Stream, of September 10th: 



" In Ashbridge Marsh, south of Gooderham's byres, in front 

 of the Stanley Gun Club shooting house, a Wilson's snipe's nest 

 was found by R. Buchanan, May 12th, 1910. When found, it 

 contained the full clutch of four eggs. It was frequently visited 

 by Mr. Alberts and others, and the eggs were hatched out between 

 the 1st and 2nd of June. The nest and eggs were taken by Mr. 

 Alberts and are now in the possession of James Munro. The 

 male bird was frequently seen and sometimes on top of the trap 

 house. The female was hard to flush, and lay close during all the 

 shooting, if not approached from the path of the trap house." 



A photograph is published in Forest and Stream which shows 

 a gim wad lying beside the eggs in the nest ; and a diagram of 

 the position of the nest shows it to be nine feet from a much-used 

 ^^ path and twelve yards from a shooting platform. 



iBjC^^X W. E. Saunders. 



BRARYJ^ 



