CONTENTS OF VOL. III. 
Page. 
Birds of Wisconsin. By L. Kumlien and N. Hollister (8 Plates) 
Dec.. 30, 1904 * ' 1 
Proceedings 145 
Some observations on the life history and habits of parasitic bees. 
By Sigmund Graenicher (1 Plate) November, 1905 153 
Canvas-back duck food. By H. L. Skavlem (abstracted) 168 
Oecological features of evolution. By Ermine C. Case 169 
The number of young of the red bat. By Henry L. Ward 181 
Notes and descriptions of North American parasitic Hymenoptera. 
By Chas. T. Brues 183 
