1913.J NATURAL SCIENCES OF PHILADELPHIA. 695 



by Dr. Witmer Stone ; one on milk-born epidemics of communicable 

 diseases by Dr. B. F. Royer; one on a sanitary survey of the Alle- 

 gheny water shed by Mr. T. Herbert Snow; three on anthropology 

 and ethnology by Dr. Spencer Trotter; three on entomology' by 

 Dr. Henry Skinner; three on studies in local plant life by Mr. 

 Stewardson Brown, and three on the natural history of the Hawaiian 

 Islands by Dr. Henry A. Pilsbry. 



The afternoon course for students of the Girls' High School began 

 October 8, and was largely attended. Two lectures each were 

 delivered by the following: Dr. Henry Skinner on insects; Dr. 

 Henry A. Pilsbry on crustaceans and mollusks; Dr. J. Percy Moore 

 on reptiles and mammals; Dr. Witmer Stone on birds, and INIr. 

 Stewardson Brown on plants. 



There has been a gratifying increase in attendance on all the 



courses. 



Edward J. Nolan, 



Recording Secretary. 



REPORT OF THE CORRESPONDING SECRETARY. 



The toll of death from among correspondents of -the Academy for 

 the year just closed was unusually heavy. The reported deceased 

 are Professor Robert Collett, Lord Avebury, Dr. Philip Lutley 

 Sclater, Professor Igino Cocchi, Dr. Joseph K. Corson, Professor 

 Arnim Baltzer, and Alfred Russel Wallace. 



Colonel Wm. C. Gorgas, U. S. A., was elected a correspondent. 



Invitations were received to send delegates or to participate 

 otherwise in the following-named projects of scientific interest: 

 The celebration of the fiftieth anniversary of the foundation 

 of the Dumfriesiiire and Galloway Natural History and Anti- 

 quarian Society; the movement for the establishment of a memorial 

 to Giovanni Schiaparelli ; the Twelfth International Geological 

 Congress, at which the Academy was represented by Professor 

 Edgar T. Wherry, Professor Florence Bascom, and Dr. R. A. F. 

 Penrose; the bicentenary jubilee of the Imperial Botanical Gardens 

 of St. Petersburg; the Ninth International Congress of Zoology, 

 to which the Prince of Monaco, Professor Ulric Dahlgren, and 

 Dr. Edward J. Nolan were appointed delegates; the fiftj'-year 

 birthday celebration of the Natural Science Society of Braunschweig; 

 the one hundred and twenty-fifth anniversary of the granting of the 

 first charter to the University of Pittsburgh ; the fiftieth anniversary 



