3 





















| ir. es Wilaermath is spending some weeks in the Washington 
rice engaged in the preparation of manuscripts for publication, 
ht 
a Among the callers at the office during November were Prof. C,.P. 
pilette, Ft, Collins, Colo., Prof. S. B. Doten, Reno, Nevada, and Dr. 
R Ball, Logan, Utah. os aaa 
_ The faculty of Iowa State College has under consideration the mat- 
ir of establishing a course in entomology tending to fit men for Gov- 
mment and experiment Station positions. 
The entomological paper in No. 2, Vol. I, Journal of Agricultural 
28 search, is by Mr. W. Dwight Pierce, the title being "The Occurrence 
2 Cotton Boll Weevil in Arizona." | , 
= To prevent waterproof ink from running in a diluted alcohol so- 
ae the label should be saturated with absolute alcohol, and al- 
ad to dry before placing in the weaker alcohol solution. 
T. D. URBAHNS. 
Mr, R. J. Kewley has been transferred from Salt Lake City, Utah, to 
i Fayette, Ind. Mr. Harrison E. Smith has returned from Koehler, New 
Kico to Wellington, Kans., while Mr. D. J. Caffrey is working over 
1e eastern portion of the former State in continuation of tne range 
aterpillar investigations. 
A convenient formula for diluting solutions, such as alcohol, from + 
ie strength to some other desired strength is as follows: | 
100 x Quantity to be changed x Present strength = Total 
sired strength 1 100 amt. 
Example.--To reduce 20 cc. of 95% alcohol to 70% alcohcl solution: 
100 20 95 .= 27.1 (add water to make 27.1 cc.) 
70 ae £87 T. D. URBAHNS. 

There has recently been discovered among the files in the Bureau 
P Entomology a considerable number of sets of illustrations struck 
rom copper plate engravings originally made for the Loew and Osten 
gcken Monograph of North America diptera. These belong to Volume 
II, Dolichopodidae, Plates III-VII inclusive; Ortalidae and 
ry petidae, Plates VIII-XI inclusive. 
Also complete sets of uncolored plates from de Sassure’s North 
Rericen Vespidae, Smithsonian Misc. Coll. No. 254. All of these 
lates are peautifully drawn and engraved and should be of value to 
itudents and others interested in the orders Hymenoptera and Diptera. 
ney will be distributed free of charge to all who apply for them to 
he U. S. Bureau of Entomology, Washington, D. C. 

