154 IOWA ACADEMY OP SCIENCES. 



Macbride, T, H. Forest trees of Allamakee county. la. Geol. Surr. 

 4:112-120. 1894. 



Mcbride, T. H. Forest trees of Johnson county. la. Geol. Surv. 

 4:105-108. 1896. 



Nagel, J. J. and Haupt, J. G. List of phaenogamous plants collected in 

 the ricinity of Davenport, Iowa, by J. J. Nagel and J. G. Haupt during the 

 years 1870 to 1875, inclusive. Proc. Dav. Acad. Nat. Sci. 1:153-164. May 

 1876. 



Pammel, L. H. Character and distribution of forest trees and shrubs in 

 Boone county. la. Geol. Surv. 5:232-239. 1895. 



Pammel, L. H. Notes on the flora of Western Iowa. Proc. la. Acad. 

 Sci. 8:106-135. 1895. Contr. Dept. Bot., la. St. Colt. 1:106-135. 



Shimek, B. Perfect flowers of Salix amygdaloides. Proc. la. Acad. 

 Sci, 3:89-90. /. 1-2. 1895. 



