1915.] NATURAL SCIENCES OF PHILADELPHIA. 589 



A detailed list of accessions to the herbarium will be found in the 

 Additions to the Museum. 



The Conservator wishes to record his appreciation of the valuable 

 assistance rendered, during his absence through illness, by Mr. Bayard 

 Long in caring for certain details of the work of the herbarium. 



Miss Ada Allen has continued her services during the year as 

 aid in the herbarium. 



The American Fern Society held its meeting in the herbarium of 

 the Academy, December 28 and 29. On the evening of December 

 31 the Section gave a reception and smoker to the botanists attending 

 the meetings of the American Association for the Advancement of 

 Science, when we had the pleasure of welcoming more than 200 

 visitors in the herbarium. The occasion afforded many their first 

 opportunity of examining the collections. 



The following officers of the Section have been elected for the 

 ensuing year: 



Director Benjamin H. Smith. 



Vice-Director Joseph Crawford. 



Recorder John W. Eckfeldt, M.D. 



Treasurer and Conservator Stewardson Brown. 



Respectfully submitted, 



Stewardson Brown, Conservator. 



MiNERALOGICAL AND GEOLOGICAL SECTION. — The ScctioU held 



four meetings, with about the usual average attendance. 



Communications were made by Thomas C. Brow^i, on the Geologj' 

 and Fossil Corals of Jefferson County, Kentucky, and on the Shawan- 

 gunk and Green Pond Conglomerate; and by F. Lynwood Garrison, 

 on Alluvial Gold Deposits in Alaska and elsewhere. Other subjects 

 of geological or mineralogical interest were discussed. 



There were three field excursions, with an average attendance of 

 seventeen. The parties visited: (1) The crystalline rocks and 

 their minerals between Avondale and Morgan Station, Delaware 

 County; (2) the New Red Norristown Shales and No. 11 Limestone 

 in Buckingham Township, Bucks County; (3) the gneiss and its 

 minerals near Crum Creek, Delaware County. 



The following officers of the Section have been elected for the 

 year 1916: 



