Historical maps309. Yield of rye per square mile: 1890. 310. Production of rye per acre of improved land: 1890. Julius Bien & Co. Lith., N.Y. (1898) https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~32027~1151375
309. Yield of rye per square mile: 1890. 310. Production of rye per acre of improved land: 1890. Julius Bien & Co. Lith., N.Y. (1898) https://www.davidrumsey.com/luna/servlet/detail/RUMSEY~8~1~32027~1151375