V 



4 . CONTENTS 



Invasion of a Missouri River Alluvial Flood Plain. (Plates IV, V.) — 



Herbert ('. Hanson 196 



Migration of Our Birds in Spring of 191 7. — Bro. Alphonsus 205 



Book Review. — J. Lunell 209 



Some New Braehiopods and Gastropods from the Devonian of Iowa. 



(Plates VI, VII). — Carrol Lane Fenton 213 



Heterothrix (B. L. Robins.) Rydb. A Synonym and Other Notes. — 



J. A. Niewwland 224 



Shooting Birds for the Purpose of Identification. — Bro. Alphonsus 225 



" Fairy Circles." — /. A. Nieuwland 230 



Birds of Northern Indiana and Southern Michigan. — Bro. Alphonsus 242 



APPENDIX. 



REPRINT NO. 5- 

 Observationum Generum Violae, Utriculariae, Gratiolaeque Reimpressio 



(1917) mense Julio. 

 Introduction and Notes. I-XII. — /. A. Nieuwland. 

 Biography and Bibliography. 1-4. — John Henry Barnhart. 



