540 ANNOUNCEMENTS 



of nearly 4000 feet above the sea and above the Hudson-Mohawk low- 

 land east and north. Glacial striae have been found on the tops of 

 some of these peaks, but the peak farthest south, Slide Mountain, al- 

 titude 4200, is covered with loose residual gravel. The Catskills are 

 unique in having several long deep valleys trending across the path of 

 the main ice movement. These head in the bold escarpment above the 

 Hudson valley, and drain westward. From their heads passes open 

 about 2000 feet above the jHudson valley. During the period of ice 

 retreat tongues of ice from the lobe in the Hudson valley flowed thru 

 the passes down the valleys producing deposits which simulate accumu- 

 lations from local glaciers. In hollows between spurs on the north sides 

 of some of the peaks masses of ice entering from the north seem to have 

 been cut off. Against these stagnant masses, yearly advances of the 

 main ice tongues made deposits which are now barriers between the 

 spurs. 



The present attitude of German geographers toward W. M. Davis' 

 explanatory description of land forms: FRANgois E. Matthes. (No 

 abstract.) 



Ralph W. Richards, Secretary. 



ANNOUNCEMENT OF MEETINGS 

 CHEMICAL SOCIETY OF WASHINGTON 



(Local Section American Chemical Society) 



The 233d meeting will be a special meeting, to be held at the Cosmos 

 Club at 8.15 p, m., Monday, December 22. Professor Earl B. Phelps, 

 of the Hygienic Laboratory will lecture on ''Recent Advances in Sewage 

 Chemistry." 



Robert B. Sosman, Secretary. 



