00784cam a22002531 4500 agr17000544 DLC 20260227110939.0 cr_||||||||||| 780323s1832 vau 000 0 eng c agr17000544 (OCoLC)3742461 U. S. Dept. of Agr. Library ViW OCoLC DLC premarc S643 .R92 1832 Ruffin, Edmund, 1794-1865. An essay on calcareous manures. By Edmund Ruffin. Petersburg, Va., J. W. Campbell, 1832. xii, [13]-242 p. 19 cm. Also available in digital form on the Internet Archive Web site. Marl. Fertilizers. http://hdl.loc.gov/loc.gdc/scd0001.00027623165 8500 8500