OFFICIAL PUBLICATION OF 



IOWA STATE COLLEGE OF AGRICULTURE 



AND MECHANIC ARTS 



Vol. XIII 



JULY 1, 1914 



No. 5 



WINTERING BEES IN IOWA 



Tar paper cases for winter protection do well in ordinary winters. 



AGRICULTURAL EXTENSION 

 DEPARTMENT 



Extension Bulletin No. 22 



Ames, Iowa 



Published Tri-Monthly by the Iowa State College of Agriculture and Mechanic 

 Arts. Entered as Second-class Matter, October 26. 1905, at the Post Office at 

 Ames, Iowa, under the Act of Congress of July 16, 1904. 



