Circulars, 1916- | University of Illinois Archives
|Archives Research Center, 1707 S. Orchard||1-|
|Archives Research Center, 1707 S. Orchard||2-14|
Printed Circulars of the Extension Service in Agriculture and Home Economics published irregularly for distribution to farmers and advisers and for government use in special programs, concerning areas of farming, rural sociology, youth work publications and publications of the North Central Association of colleges of Agriculture.
The Extension circulars 1-45 were published separately from the Experiment Station Circulars until 1921, when both series were combined with the Experiment Station number 247. Since 1940 (Circular #510), the Series has been designed as Extension Service Circulars.