29 



13. Limestones and Intruded Trachyte from 4 miles west 



of Sturgis, S. Dak., exhibiting contact effect of lava on 

 limestone. Collected by the exhibitor, Heinrich Ries of 

 Columbia University. 



14. Specimens Illustrating the Metamorphism of Gab- 



BROS in the western Adirondacks. Collected and ex- 

 hibited by Prof. C. H. Smyth, Jr., Hamilton College, 

 Clinton, N. Y. 



15. Contorted Pegmatite Veins from the vicinity of Gouver- 



neur, N. Y. Collected and exhibited by Prof. C. H. 

 Smyth, Jr. 



16. A Series of Specimens illustrating the geology of the Ber- 



muda Islands as described before the Academy, January 

 18, 1897. T^^^Q paper is now in press. Collected and 

 exhibited by Prof. J. J. Stevenson, New York Univer- 

 sity. 



17. Views of Greenland Glaciers, taken by the Cornell Uni- 



versity Greenland Expedition in the summer of 1896. 

 Small photographs made by R. S. Tarr, larger ones by 

 J. O. Martin. 

 a. A large view of the Cornell Glacier, Lat. 74° N. made 

 by the combination of six 5x7 pictures. View taken 

 from an elevation of 1400 feet above the ice-laden fjord 

 in the mid-ground. The land contact and sea front of 

 the glacier shown distinctly. A characteristic nunatak. 

 Mount Schurman, rises above the ice in the middle of 

 the picture at a distance of about ten miles from the 

 camera, elevation 2400 feet. A newly born nunatak 

 just appears above the surface on the right hand side. 

 Extent of ice front of glacier in the picture about seven 

 miles. Line of contact between sky and ice about 50 

 miles distant. 50 or 60 miles of ice included between 

 the extreme left and extreme right of the picture. This 

 is a characteristic view of the inland ice, its contact with 

 the land and its sea front. 



