1919.] NATURAL SCIENCES OF PHILADELPHIA. 301 



Memoirs, and three-hundred and four pages and eleven plates of 

 the Entomological News. 



Of the Manual of Conchology, parts 98 and 99, of volume 25, 

 second series, comprising one-hundred and eighty pages and eighteea 

 colored plates, have been issued by Dr. Pilsbry, Curator of MoUuscn. 



Seven members have been elected during the year, and the deaths 

 of eleven have been announced. Three members have resigned. 



The Ludwick Institute Free Lecture Courses were delivered at the 

 Academy, in the evening on Mondays, January 7, to April 22 inch, 

 and in the mornings during the spring at the several High Schools, 

 by Witmer Stone, Henry W. Fowler, James A. G. Rehn, Spencer 

 Trotter, Henry A. Pilsbry, J. Percy Moore, and J. Fletcher Street. 

 All lectures were illustrated by lantern slides. 



The Delaware Valley Ornithological Club and the Philadelphia 

 Botanical Club have continued their meetings in the Academy; and 

 meetings of the Women Teachers' Association of Philadelphia, and 

 The State Graduate Nurses' Association, were held in the Lecture 

 Hall. 



Edw. J. Nolan, Recording Secretary. 



REPORT OF THE CORRESPONDING SECRETARY. 



Deaths of the following named correspondents were announced 

 during the year. Raphael Blanchard, Frederick DuCane Godman, 

 William J. Farlow, Gustav Retzius, and Ernst Haeckel. No corres- 

 pondents were elected. 



A slight increase in the volume of foreign correspondence reflects 

 the renewal of scientific activities since the cessation of hostilities, 

 but most of the antebellum agencies for effecting scientific coopera- 

 tion remain disorganized. 



There have been no international congresses to which the Academy 

 was invited. An invitation from the Academy of Literature, Sci- 

 ences, Arts and Agriculture of Metz to participate in the celebration 

 of its reestablishment after forty-nine years of suppression by the 

 German conquerers was received and answered by a congratulatory 

 letter. 



A copy of a resolution thanking the Academy for courtesies extended 

 during its convention in Philadelphia was received from the American 

 Association of Museums. In connection with the removal of the 

 offices and exhibits of the Pennsylvania Department of Health a 

 letter expressive of appreciation of favors rendered by the Academy 

 was received from the new Commissioner of Health. 



