1917. j 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. Oldach; 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 W7n. 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. 

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