1917.1 
NATURAL SCIENCES OF PHILADELPHIA. 
353 
Pectolite, Great Notch, N. J., presented by John Holzman; Babing- 
tonite, Paterson, N. J., presented by R. A. Mercer; Beraunite, 
Hellertown, Pa., presented by Fred. Olclach; and Rutile, Rowlands- 
ville, Philadelphia, presented by Harry A. Warford. 
Samuel G. Gordon has continued to give valuable assistance in 
caring for the collection. 
Respectfully submitted, 
F. J. Keeley, Curator Wm. S. Vaux Collection. 
REPORTS OF THE SECTIONS. 
The Biological and Microscopical Section. —The Biological 
and Microscopical Section held eight meetings during the year. 
The attendance and membership have increased. 
The Conservator reports the gift of a Hartnack microscope and 
more than eight hundred slides of Invertebrata from the estate 
of the late Dr. Benjamin Sharp. Some work has been done in the 
arrangement of the general collection of slides. 
Numerous communications have been made by members including 
Messrs. T. C. Palmer, Hugo Bilgram, W. H. Van Sickel, Dr. Thomas 
S. Stewart, F. J. Keeley, J. G. Rothermel, S. L. Schumo, B. F. Ray, 
and C. S. Boyer. 
The following officers were elected for the year 1918: 
Director J. Cheston Morris, M.D. 
Vice-Director T. Chalkley Palmer. 
Treasurer Thomas S. Stewart, M.D. 
Conservator F. J. Keeley. 
Recorder and Cor. Sec. Charles S. Boyer. 
Charles S. Boyer, Recorder. 
Entomological Section. —Six stated meetings were held during 
the year, with an average attendance of ten persons. Interesting 
communications were made by: Morgan Hebard, Philip P. Calvert, 
Henry Skinner, James A. G. Rehn, Philip Laurent, Roswell C. 
Williams, Jr., Ernest Baylis and Henry W. Fowler were elected 
contributors, and Charles W. Frost was elected a member. The 
death of W. D. Kearfott, a contributor, was announced. The 
purchase was made of a Bausch & Lomb Combined Balopticon, 
suitable for the projection of lantern slides and opaque objects. 
