NOTICE TO EXCHANGES. 



The attention of learned societies and other institutions which 

 exchange . s(^ie!ntifi|C publications with the University of Kansas is 

 called to the list of publications of this University on the third and 

 fourth pages of the cover of this issue. 



Those marked ''Supply exhausted" cannot be furnished at all ; as 

 far as the supply permits the remaining numbers will gladly be fur- 

 nished to any of our exchanges who may need them to complete their 

 files. 



Back numbers of the Kansas University Quarterly, as far as pos- 

 sible, 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 irregular inter- 

 vals. Each volume contains from 300 to 400 pages of reading-mat- 

 ter, with necessary illustrations. 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, 

 Library of the University of Kansas, 

 Lawrence, Kan. 



EDITORIAL BOARD. 



S. J.. Htjntbb,; Chairman. O. O. Stoland. 



R. C. MootiE, Secretary. W. S. Hunter. 



W. C. Stevens. W. J. Baumgabtner. 



H. C. Teacy. 



Editorial Note. — ^This volume was assembled and published under the edi- 

 torial supervision of Dr. H. B. Hungebford. 



