ABSTRACTS OF PAPERS 57 



SHORELINE MIGRATION AND RECENT COORDINATE CHANGES IN BOTTOM 

 TOPOGRAPHY AT POINT PELEE, LAKE ERIE 



BY E. M. KINDLE 



(Abstract) 



Slides were shown illustrating tlie physical feature of Point Pelee, which 

 was described as a V-shaped foreland, about nine miles in length, chiefly 

 marsh bordered by narrow bands of sand. The nature of the changes which 

 the slioreline of tlie point laas undergone since 1889 was indicated in a com- 

 posite map showing on the same scale the seven surveys of the point which 

 have been made previous to 1918. Two very detailed surveys of the shoreline 

 of the southern portion of the point made by the Department of Public Works 

 engineers in the years 1918 and 1920 were sliown on one sheet, together witli 

 the lake bottom contours down to a depth of 25 feet, on a 5-foot interval. 

 These two surveys were made in years when the lake stood at nearly the 

 same level, thus eliminating the- high and low water factor in modifying the 

 outline of the sliore. These surveys showed a southward extension of tlie 

 narrow tip of tlie point during the two years represented, amounting to 1,175 

 feet. During the same period a considerable portion of the east shore showed 

 some erosion, which near the residence of the captain of the life-saving crew 

 reached a maximum amounting to about 100 feet. The southerly portion of 

 tlie west shore showed a corresponding growth. 



The two sets of soundings showed that great changes in the bottom topog- 

 raphy had occurred during the two-year period included by them. On the 

 west side, near the tip of the point, tlie contours showed a maximum westward 

 movement of more than 300 feet. On the east side of the point the 20-foot 

 contour has moved eastward in places 500 to 600 feet. In general the bottom 

 on both sides of the point showed a more gentle gradient in 1920 than in 1918. 



Presented without manuscript. 



EXPERIMENTS ON THE FORMATION OF ESKERS AND KAMES 

 BY HERDMAN F. CLELAND AND PARIS B. STOCKDALE 



(Abstract) 



The apparatus used in these experiments are described and the preliminary 

 results will be presented. Suggestions and criticisms of the methods and re- 

 sults are desired, in order that the authors may benefit by them in the further 

 experiments on the formation of these glacial deposits. 



Presented by title in the absence of the authors. 

 Adjournment was taken at 5.15 o'clock. 



Sectional Meeting, Wednesday Afternoon 



A sectional meeting for the consideration of petrologic, mineralogic, 

 and economic papers met in one of the recitation rooms in Rosenwald 



