2i8 The Ottawa Naturalist. [December 



Cladonia gracilis, var. hybrida, Schaer. 



Klondike bank behind Dawson. 

 Cladonia rangiferina, var. svlyatica, Linn. 



Bank of Yukon opposite Dawson. 

 Cladonia deformis, (L. ) Hoffm. 



Klondike Bank behind Dawson. 

 Cladonia coRNucopioiDES, (L. ) Fr. 



Bank of Yukon River opposite Dawson. 



REPORT OF THE GEOLOGICAL BRANCH FOR 1898-1899. 



To the Council of the Ottawa Field- Naturalists' Club : 



In presenting this, the annual report of the work done by this 

 branch of the Club, I have to report that whilst there may have 

 been a considerable amount of individual and official as well as 

 professional work done by many members of the Club in this 

 district, there does not appear to have been a large amount of 

 concerted work in connection with the Club to report this season. 



At the various excursions, or sub-excursions, held under the 

 auspices of the Club during the past year, some one or more of 

 your leaders appointed by your Council were present, and assisted 

 in explaining the various geological formations and phenomena 

 occurring in the several localities visited. The following comprise 

 some ot the excursions held and localities visited by the Club 

 during the past year : 



1. Chelsea Hills, north of Ottawa, in a district where rocks 

 of Archaean age occur. 



2. Moore's Landing, Ont., at the head of Lake Deschenes, on 

 the edge of the Ordovician system, and where the triple character 

 of the sediments which constitute the Chazy formation may be 

 seen and studied to advantage. 



3. Aybner, Que., where the Chazy formation is also well 

 developed, and has been studied with important results by our 

 member, Mr. T. W. E. Sowter, whose interesting contribution to 



