602 PROCEEDINGS OF THE ACADEMY OF [Dec.; 



thus bringing all the collections of our region together in one series. 

 Mr. Bayard Long has continued his valuable services during the 

 year, and acknowledgment is made of the continued services of 

 Miss Ada Allen as assistant in the herbarium. 



At the annual meeting of the Section, held November 23, the 

 following officers were elected: 



Director Benjamin H. Smith. 



Vice-Director Joseph Crawford. 



Recorder Charles S. Williamson. 



Treasurer and Conservator Stewardson Brown. 



Respectfully submitted, 



Stewardson Brown, 



Conservator. 



Mineralogical and Geological Section. 



The Section has held four meetings this year, with about the 

 average attendance. A communication was made by Mr. S. Harbert 

 Hamilton on exact surveying methods for the geological delineation 

 of ore bodies, especially magnetite, besides some shorter com- 

 munications and various discussions. 



There were five field excursions, with an average attendance of 20. 

 The parties visited: (1) A line of Cambrian quartzites and lime- 

 stones between Westtown and Brinton's Bridge, Delaware County; 

 (2) Crystalline rocks and their minerals near the southern edge of 

 Delaware County; (3) The New Red rocks near Jacksonwald, 

 Berks County; (4) The New Red rocks near Mt. Monocacy, Berks 

 County; (5) The New Red rocks near the Ecton and Perkiomen 

 Mines and Valley Forge, Montgomery County. 



The following officers of the Section have been elected for the 

 year 1912: 



Director Benjamin Smith Lyman. 



Vice-Director Frank J. Keeley. 



Recorder and Secretary Silas L. Schumo. 



Treasurer William B. Davis. 



Conservator George Vaux, Jr. 



Respectfully submitted by order of the Section, 



Benjamin Smith Lyman, 



Director. 



