Secretary Wm. jf. Haddock: 



We have the pleasure of submitting through you to the 

 Board of Regents of the State University of Iowa, this first 

 Bulletin from the laboratories of Natural Science. The work 

 of the University in this direction has of late years been 

 rapidly growing in interest and efficiency. For this growth 

 we recognize our indebtedness to no one more than to your- 

 self. Very respectfully, 



The Editors. 



