310 PROCEEDINGS OF THE ACADEMY OF [Dec., 
Specimens have been loaned for study to Dr. Paul Bartsch, Mr. 
J. B. Henderson and Dr. V. Sterki. 
Insects. 
Dr. Henry Skinner, head of the Entomological department, reports 
that as usual a large amount of material has been incorporated in the 
collections during the year but lack of cases has seriously retarded 
its arrangement. He has, however, completed the rearrangement 
of the large group of the exotic Hesperidse. 
Notable additions to the collection have been 75 diptera from the 
western United States and Alaska from F. M. Jones; some rare East 
Indian and South American lepidoptera from W. J. Coxey; 356 lepi- 
doptera from Panama and Costa Rica, from D. E. Harrower; a 
gynandromorphic Papilio turnus from G. F. Pettinos, Jr.; a collec¬ 
tion from the Chiricahua Mountains, Arizona, from Dr. W. Stone, 
consisting of about 4000 specimens; a large series of orthoptera and 
many coleoptera etc., from Morgan Hebard. 
Mr. E. T. C'resson, Jr., has prepared a revision of the dipterous 
family, Sciomyzidse, which is now in press, while the family An- 
thomyidse has been studied by J. R. Malloch. Many new species 
of diptera have been received in return for identification of material 
sent by other institutions. 
In orthoptera, Mr. J. A. G. Rehn has rearranged several groups 
so as to admit of the incorporation of newly received or determined 
material and has mounted and labelled many specimens. His studies 
during the year have covered the West Indian Blattidse, African 
Blattidse and a revision of the North American Trimerotropi. 
Mr. Morgan Hebard, who has continued his researches at the 
Academy during the year, has completed a study of the Colombian 
dermaptera and orthoptera and also a monograph of the Blattidse 
of Panama, and a report on Mantidae from Malaysia, Papua and Aus¬ 
tralia. 
Numerous entomologists have studied the collections and specimens 
were borrowed for study by Chas. Schaeffer and Edw. C. Van Dyke. 
Plants. 
The transfer of the herbarium to new quarters at the east end of 
the north wing, has already been mentioned. Mr. Stewardson Brown, 
in charge of this department, reports that the general series of plants 
has been arranged in the three lower rooms, the local collection in the 
middle room on the upper floor and the cryptogams in the south 
