22 
The following gentlemen have received materials for their pub- 
lications from the Museum collection : — 
Rev. A. E. Eaton, Croydon, England, for his Monograph of 
Ephemerina, of which 55 plates in quarto (advance sheets) are 
finished. 
Mr. E. Simon, Paris, France, the Arthogastra of the collection, 
which have been returned determined. Publication in prep- 
aration. 
Count Keyserling, Glogau, Silesia, the North American Spiders. 
Partly returned and published. 
Dr. S. Meinert, Copenhagen, Denmark, all Myriopoda. Not 
yet returned. 
Prof. H. J. Comstock, Ithaca, N. Y., Coccide. Published. 
Prof. H. Osborn, Ames, lowa, Aphid. Published. 
Mr. S. Henshaw, the large collection of Coleoptera from Wash- 
ington Territory. In way of publication. 
The Assistant has published the Atropina family of a Mono- 
graph of the Psoride; the Papilio and Pieris of Washington 
Territory ; a larger paper on the Colias of the United States ; 
besides a number of smaller papers in American and European 
‘serials. 
A number of special students have worked in the department 
from Ludington, Mich., Montreal, New York, Brooklyn, one dur- 
ing three months, the others several weeks. 
Visitors to the department, students comparing the collection 
for determination, requests by letter for scientific information, and 
letters asking bibliographic questions, were as frequent as usual. 
The following papers have been published by Dr. H. A. Hagen 
during the past’ year : — 
1. Jahresbericht fur 1882, A. Dohrn and V. Caras. Neuroptera, 
Pseudoneuroptera. 
2. Stett. Ent. Zeit., pp. 225-332. Monographie der Psorine, Zweite 
Familie Atropina, mit histor. Anhang ueber die Todtenahr. 
8. Nature, XX VII. 173. Invertebrate Casts. 
4, Ibid., XXVIII. 244. The Mealy Odorous Spot in Lepidoptera. 
Entom. Monthl. Mag., London, Vols. XTX., XX. 
. The Tarsal and Antennal Characters of Psocide, p. 12. 
. A Marine Caddis-fly, p. 285. 
. Simulium feeding on Chrysalids, p. 254. 
8. Insects from the East Coast of Greenland, p. 42. 
“Io 
