BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA 

 Vol. 6, pp. 1-28 November 23, 1894 



PROCEEDINGS OF THE SIXTH SUMMER MEETING, HELD 

 AT BROOKLYN, NEW YORK, AUGUST 14 AND 15, 1894 



Herman Le Roy Fairchild, Secretary 

 CONTENTS 



Pago 



Session of Tuesday, August 14 1 



Election of Fellows %. 2 



The nickel mine at Lancaster Gap, Pennsylvania, and the pyrrhotite 



deposit at Anthony's Nose, on the Hudson [abstract] ; by J. F. Kemp. . 3 

 A connection between the chemical and o])tical properties of amphiboles 



[abstract] ; by Alfred C. Lane 3 



On a basic rock derived from granite | abstract] ; by C. II. Smyth, Jr. . . . 4 

 Dislocations in certain portions of the Atlantic coastal i)lain strata and 



their probable causes [abstract; discussion by N. S. Shaler] ; by Arthur 



Rollick . 



o 

 Glacial origin of channels on drumlins ; by George H. Barton 8 



Session of Wednesday, August 15 13 



Rei)ort of the Mount Rainier Pacific Forest Reserve Connnittce 13 



Proposed amendments to the constitution 15 



Proposed amendment to the by-laws 15 



Tertiary and early (Quaternary baseleveling in Minnesota, ]\ranit()l)a and 



northwestward [abstract] ; by Warren Upham 17 



Departure of the ice-sheet from the Laurentian lakes [abstract] ; by 



Warren Upham 21 



Note on Florentino Ameghino's latest i)apcr on Patagonii\n paleontology ; 



by W. B. Scott 28 



Register of the Brooklyn summer meeting 28 



Session of Tuesday, August 14 



The Society convened in room 11, second floor of tlie Packer Institute. 

 In the absence of the President, Vice-President N. S. Shaler i)resi(le(l dur- 

 ing the several sessions of the meeting. After the call to order, at 10 

 o'clock a m, the acting President spoke a few words of salutation, and 

 announced the death of two Fellows, Professor (Jeorge II. W'illiauis, of 

 Baltimore, and Mr Amos Jiowmau, of Anacortes, ^^'ashington. 



I— Bli.i.. Okol. S(tr. Am., Vol. 0, 18'.»4. (1) 



