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 Section held 
four meetings, with about the usual average attendance. 
Communications were made by Thomas C. Brown, on the Geology 
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: 
