NOTICE TO EXCHANGES. 
The attention of learned societies and other institutions 
which exchange scientific publications with the University of 
Kansas is called to the list of publications of this University on 
the third page of the cover of this issue. 
Those marked “Supply exhausted” can not be furnished at 
all; those marked “Supply small’ can not be furnished sep- 
arately; those marked “Supply large’ will gladly be furnished 
to any of our exchanges who may need them to complete their 
files. ; 
Back numbers of the Kansas University Quarterly and Geo- 
logical Survey, as far as possible, will be sent to those of our 
newer correspondents who are able and willing to reciprocate. 
ANNOUNCEMENT. 
The Kansas University Science Bulletin (continuation of 
the Kansas University Quarterly) is issued in parts at irregu- 
lar intervals. One volume, containing from 300 to 400 pages of 
reading-matter, with necessary illustrations, is issued each 
year. The subscription price is $3 per volume. Exchanges 
with other institutions and learned societies everywhere are 
solicited. All exchanges should be addressed to the LIBRARY 
OF THE UNIVERSITY OF KANSAS. 
All communications should be addressed to 
THE KANSAS UNIVERSITY SCIENCE BULLETIN, 
LAWRENCE, KAN. 
EDITORIAL BOARD. 
W. J. BAUMGARTNER, Managing Editor. 
U. G. MITCHELL, Exchange Editor. 
W. C. STEVENS. 
F, E. KESTER. 
E. H. S. BAILEY. 
S. J. HUNTER. 
