98 



seen in ten years. The large Planorbis, usually called trivolvis, but 

 which, in the opinion of the leaders, is quite a distinct species, was 

 found in abundance in the Rideau River west of Billings Bridge. The 

 shells are easily obtained in the month of May, when like all other 

 Planorbes, they are very active. Observations on this shell from the 

 egg through various stages of growth to the adult shell may be stated at 

 some future time and a description ventured. 



The trip to Meech's and Harrington Lakes, of which an account 

 is given in number 7, vol. vii, of The Ottawa Naturalist, although 

 undertaken under adverse circumstances, was attended with very happy 

 results. An excursion to Lake Bernard, in still more inclement weather, 

 met with little success, as but few shells could be collected. The 

 Gatineau River, owing to its rapidity and the few bays which it contains, 

 is noted for the absence of molluscan life. At Farrelton, however, in 

 September, when the water was very low, a surprisingly large number 

 of shells were obtained. Our three Margaritanas were tound in abun- 

 dance, and several others of the Unionidse. The Ottawa River was too 

 high throughout the summer to admit of successful collecting. The 

 famous shoals at Duck Island, on one occasion, however, yielded a 

 number of shells which amply compensated for the long row up and 

 down the river. 



A remunerative method of collecting small shells was found to be 

 the gathering of moss during the autumn from woods and swamps. 

 This moss is then sifted during the winter. In this way no less than 

 14 species were collected in one bag of moss taken from the edge of 

 the swamp to the south of the St. Louis Dam. 



The leaders will be pleased at all times to assist members either 



with instructions as to the best methods and localities for collecting, or 



in the naming of species. 



F. R. LATCHFORD/) T , 

 J. FLETCHER, f Leaat ' s - 



EXCURSION No. 



Will be held on Saturday, September 15th, to Galetta on the O. 

 and P. S. Railway. 



The Train leaves at 8 A.M. Tickets, 60 cts. and 50 cts.; Children 

 half-price. 



