Illinois soils in relation to systems of permanent agriculture
By: by Cyril G. Hopkins
Series: Circular / University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station -- no. 108; Circular (University of Illinois (Urbana-Champaign campus). Agricultural Experiment Station) -- no. 108
Publisher: University of Illinois Agricultural Experiment Station
Published: 1906
Place of publication: Urbana, Ill
Language: eng
Number of pages: 26
Subjects: Crops and soils
Notes: Caption title.

"An address read before the Illinois State Farmer's Institute at Quincy, February 20, 1907"--P. 1.