RECORDS OF MEETINGS 351 



SUMMAEY OF PAPERS. 



Professor Woodman illustrated his paper with many photographs 

 showing exceptionally fine views of the topography of the region and 

 the cliffs, bars and spits of the shores. Two peneplain surfaces are to 

 be seen — the higher, characterized by crystalline rocks, and the lower 

 by Carboniferous strata. The hooked spits and loops and bars of re- 

 cent wave and current work are developed on a scale that is seldom 

 equaled. 



Professor Berkey discussed the reasons for the usual belief that the 

 straight course of the river is due to fault structure and illustrated this 

 view by the use of Professor Hobbs's map of Atlantic border lineaments. 

 It was then shown that a detailed study of the structural geology of the 

 lower Hudson region shows many strong faults crossing the river 

 obliquely N. E. to S. W. and some much less important running 1ST. W. 

 and S. E., but none of any real consequence running N. and S. or par- 

 allel to the Hudson Eiver. It would be considered most extraordinary 

 if a great river like the Hudson should be controlled by small, insignifi- 

 cant faults and pay so little attention to the large fault zones. 



Eemarks were made by Professor "Woodman. 



Mr. Marsters showed maps and drew sketches of structure and topog- 

 raphy. Two belts of oil-bearing strata were described, both Tertiary — 

 a coastal region and an interior region. 



The Section then adjourned. 



Chaeles P. Berkey, 



Secretary. 



SECTION OP BIOLOGY. 

 11 March, 1912. 



By invitation of Professor C.-E. A. Winslow and his colleagues, the 

 Section met at 8:15 p. m. in the Department of Zoology of the College 

 of the City of New York, Vice-President Lucas presiding. 



The minutes of the last meeting of the Section were read and ap- 

 proved. 



The following programme was then offered : 



C.-E. A. Winslow and I. S. Kligler, The Number and Kinds of Bac- 

 teria in City Dust. 



C. V. Chapin, The Aerial Transmission of 



Disease. 



