l'.llli.l NATURAL SCIENCES OF PHILADELPHIA. 611 



REPORT OF THE RECORDING SECRETARY. 



The six meetings now provided for by the By-Laws were held 

 December 21, 1915, January 18, February 15, March 21, April 18 

 and November 21, 1916. Communications were made by William 

 P. Magie and Daniel M. Barringer, Witmer Stone, Edwin (J. Conk- 

 lin, Merkel H. Jacobs, and Henry Skinner. 



Twenty-three papers have been presented for publication, as 

 follows: Henry W. Fowler, 2; William H. Dall, 2; Nathan Banks, 1 ; 

 J. A. G. Rehn and Morgan Hebard, 1; R. W. Shufeldt, 1; J. Hen- 

 derson and L. E. Daniels, 1; H. A. Pilsbry, 1; George W. Tann- 

 reuther, 1; T. D. A. Coekerell, 1; Walter Sonneberg, 1; Joseph C. 

 Thompson, 1; Clarence B. Moore, 1; Howard Crawley, 1; Carl L. 

 Hubbs, 1; Harold S. Colton, 1; Bruce Wade, 1; D. M. Barringer 

 and Elihu Thomson, 1; Harold Heath, 1; Charles P. Alexander, 1; 

 Henry L. Viereck, 1; S. Stillman Berry, 1. 



Sixteen of these communications have been published in the 

 Proceedings, one in the Journal, five have been returned to the 

 authors, and one awaits the action of the Publication Committee. 



Six hundred and twenty-two pages of the Proceedings with 

 thirty-two plates have been issued. We are indebted to Mr. Clarence 

 B. Moore for the third part of the sixteenth volume of the Journal, 

 consisting of eighty pages and four beautiful plates in color. 



Mr. Morgan Hebard contributed $301.79 toward the expense of 

 publishing the second number of the Proceedings for 1916. 



The American Entomological Society (Entomological Section of 

 the Academy) has published four hundred and thirty-four pages, 

 with twenty plates of the Transactions, and four hundred and 

 eighty pages and twenty-five plates of the Entomological News. 

 A new series, entitled Memoirs, has been begun, of which one 

 hundred and forty-one pages have been issued. 



The Manual of Conchology has been increased by one hundred 

 and sixty-eight pages and twenty-eight plates, completing the 

 twenty-third volume and the first part of the twenty-fourth. 



The Academy's contributions to science, therefore, during the 

 past year totals 1,925 pages and 109 plates. 



The interruption in the exchange service due to the war, reference 

 to which is made in the report of the Librarian, still continues. 



