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 Mr. 
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 Lutlev 
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 Dumfrieshire 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 Ldric Dahlgren, and 
Dr. Edward J. Nolan were appointed delegates; the fifty-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 
