Some numbers are called Joint bulletin and are issued in cooperation with the United States Dept. of Agriculture.
Microfilm. No. 1 (Nov. 15, 1915)-no. 99 (Mar. 1929). Madison, WI : Collection Preservation Department, Memorial Library, University of Wisconsin-Madison, 1998. 7 microfilm reels : negative ; 35 mm. (USAIN State and Local Literature Presrvation Project: Wisconsin).