Books by Robert Stewart:
Books in the extended shelves:
![[X-Info]](https://onlinebooks.library.upenn.edu/infouc.gif)
Stewart, Robert, 1877-: Limestone action on acid soils (University of Illinois Agricultural Experiment Station, 1919), also by F. A. Wyatt (page images at HathiTrust)- Stewart, Robert, 1877-: Potash shales of Illinois (University of Illinois Agricultural Experiment Station, 1921), also by S. W. Parr, M. M. Austin, and Frank Krey (page images at HathiTrust)
- Stewart, Robert, 1877-: Quantitative relationships of carbon, phosphorus, and nitrogen in soils (University of Illinois Agricultural Experiment Station, 1912) (page images at HathiTrust)
- Stewart, Robert, 1877-: Quantitative relationships of carbon, phosphorus, and nitrogen in soils ... ([Urbana, 1910) (page images at HathiTrust)
- Stewart, Robert, 1877-: Sulfur in relation to soil fertility (University of Illinois Agricultural Experiment Station, 1920) (page images at HathiTrust)
Find more by Robert Stewart at your library, or elsewhere.