IV PREFACE. 



loss of workers and the lack of funds for pushing original investigation 

 But a glance at the contents of this volume will at least show good work 

 done by associate members. 



Articles of especial value and interest are a List of Coleoptera from the 

 Southern Shore of Lake Superior, by Professor H. F. Wickham of the Iowa 

 State University ; a Bibliography of Iowa Antiquities, and a Summary of 

 the Archaeology of Iowa, by Professor Frederick Starr of the University of 

 Chicago ; and a Revision of the Truxalinae of North America, by Professor 

 Jerome McNeill of the University of Arkansas. The six beautiful plates 

 accompanying the latter paper were reproduced by the Heliotype Printing 

 Company of Boston, from careful delineations by Miss A. Simonds and 

 Miss A. Leverett. 



The excellent engraved portrait of Dr. C. C. Parry, which forms the 

 frontispiece to the volume, was donated by Mrs. Parry, who also prepared 

 the list of his published writings. These, with the accompanying Biograph- 

 ical Sketch by Dr. C. H. Preston, will give added interest to the volume for 

 botanists the world over, as well as for the many personal friends and 

 acquaintances of Dr. Parry in this city and elsewhere. 



The Synopsis of Proceedings has been brought down to the beginning 

 of the present year, and a comprehensive index is appended which will 

 prove helpful to those consulting the volume. 



Among the papers in prospect for Volume VII. are one on the Local 

 Geology of Davenport, by Professor W. H. Barris, now ready, which it was 

 intended to have included in Volume VI., and one on the Flora of Scott and 

 Muscatine Counties, Iowa, in course of preparation by Messrs. F. Reppert, 

 A. A. Miller, and W. D. Barnes. Also, biographical sketches of Charles E. 

 Putnam and W. H. Pratt, with portraits, which were to have appeared in 

 this, will be given in the seventh volume. 



The Publication Committee takes pleasure in acknowledging the uniform 

 courtesy of Messrs. Edward Borcherdt and R. B. Russell, of the Borcherdt 

 publishing house, while the volume has been passing through the press. 



Davenport, Iowa, 



March 29th, 1897. 



