670 PROCEEDINGS OF THE BALTIMORE MEETING 



buried by subsequent glaciation. This interglacial work is the most elusive 

 or indeterminate element in the large problem. The last map shows only the 

 final drainage as it has been left by the later Wisconsin ice sheet. In detailed 

 or local study the buried and discordant valleys must be considered. 



Nearly all the valleys of central and western New York may be grouped 

 into three classes according to their direction: (1) Those with southwestward 

 direction, which seem to be mainly inherited from the ancient drainage across 

 the uplifting plain. (2) Those leading northward (northeastward in the Erie 

 basin), developed by subsequent flow toward the great master stream in the 

 axis of the Ontario-Erie valley. (3) Those leading southeastward, produced 

 by glacial waters forced toward southern escape. 



These papers were discussed together by A. W. Grabau, J. "W. Spencer, 

 F. Carney, A. P. Brigham, G. F. Wright, F. B. Taylor, A. P. Coleman, 

 and H. L. Fairchild. 



At 12.40 o'clock the Society adjourned for luncheon, meeting again at 

 2.05 o'clock to continue the reading of papers. President Calvin occu- 

 pied the chair. The first two papers were read by title. They were 



SOME PHYSIOGRAPHIC FEATURES OF THE SHAWANGUNK MOUNTAINS 

 BY GEORGE BURBANK SHATTUCK 



NANTUCKET SHORELINES, III 

 BY F. P. GULLIVER 



Then was presented orally 



NANTUCKET SHORELINES, IV 

 BY F. P. GULLIVER 



[Abstract] 



The strong north and northeast storms of the past fall have closed the Haul- 

 over, and the tombolo from Wauwinet to Coskata was completed on November 

 12, 1908. Some old maps have been studied with reference to the former east- 

 ward extension of the oldland at Wauwinet, Coskata, and Folger islands. The 

 changes on Great point since 1896 were conrpared with previous conditions and 

 with what may be expected in the future. The shoals between Nantucket and 

 Cape Cod and between Nantucket and Marthas Vineyard and the Hyannis 

 shore are considered as attempts of the sea to build tombolos. 



After this was presented orally 



NOTE ON STRIATIONS, U-SHAPED VALLEYS, AND HANGING VALLEYS PRO- 

 DUCED BY OTHER THAN GLACIAL ACTION 



BY EDMUND OTIS HOVEY 



This paper has been published as pages 409-416 of this volume. 

 The paper was discussed by A. Penck. 



