PUBLICATIONS OF DAVENPORT ACADEMY OF SCIENCES. 



Volume XL Proceedings, igo6. 8vo. Subscription price, ^3.00. 

 Individual paper's, issued separately as printed : 



Edmondson, Charles Howard. — The Protozoa of Iowa. A Study of Spe- 

 cies Known to Occur in the Waters of this State. 124 pp., 32 plates, 

 ?i.5o. 



Anderson, Rudolph Martin. — The Birds of Iowa. [In press'\ 



Moulton, Dudley. — The Monterey Pine Scale, Physokermes insignicola, 

 Craw. {In press'] . 



The Academy exchanges with learned societies and libraries. 



Orders for publications of the Academy, whether for sets, volumes, or 

 separate papers, should be addressed: "Davenport Academy of Sciences, 

 Davenport, Iowa, U. S. A." Remittances, whether by draft or money order, 

 should be made payable to "Treasurer, Davenport Academy of Sciences." 



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