Books in Browsing: Science - Earth/Agricultural/Farming (sorted alphabetically)
- Reise in die Aequinoctial-Gegenden des neuen Continents. Band 2. (German) Alexander von Humboldt
- Reise in die Aequinoctial-Gegenden des neuen Continents. Band 3. (German) Alexander von Humboldt
- Reis om de Wereld (Dutch) Charles Darwin
- Relics of Primeval Life: Beginning of Life in the Dawn of Geological Time Sir John William Dawson
- Religion of Geology and Its Connected Sciences Edward Hitchcock
- Remarks on some fossil impressions in the sandstone rocks of Connecticut River John Collins Warren
- Remarks on the management, or rather, the mis-management of woods, plantations, and hedge-row timber J. West
- Report on the lands of the arid region of the United States, with a more detailed account of the lands of Utah John Wesley Powell, Grove Karl Gilbert, Clarence E. Dutton, A. H. Thompson, and Willis Drummond
- Report upon the Mollusk Fisheries of Massachusetts Massachusetts. Commissioners on Fisheries and Game and David Lawrence Belding
- Revised and Illustrated Treatise On Grain Stacking John N. De Lamater
- Riesen und Drachen der Vorzeit. Geschichte der Erde, Dritter Teil (German) R. Bommeli
- Right Use of Lime in Soil Improvement Alva Agee
- Rocks and Their Origins Grenville A. J. Cole
- Rodent Control Aided by Emergency Conservation Work Stanley Paul Young
- Romance of Modern Geology Edwin Sharpe Grew
- Roman Farm Management: The Treatises of Cato and Varro Marcus Terentius Varro and Marcus Porcius Cato
- Roses and Rose Growing Rose Georgina Kingsley
- Roses: or, a Monograph of the Genus Rosa active 1799-1828 Henry Cranke Andrews
- Rural Magazine, and Literary Evening Fire-Side, Vol. 1 No. 01 (1820) Various
- Rural Magazine, and Literary Evening Fire-Side, Vol. 1 No. 02 (1820) Various
- Rural Magazine, and Literary Evening Fire-Side, Vol. 1 No. 03 (1820) Various
- Rural Magazine, and Literary Evening Fire-Side, Vol. 1 No. 05 (1820) Various
- Rural Magazine, and Literary Evening Fire-Side, Vol. 1 No. 06 (1820) Various
- Rural Magazine, and Literary Evening Fire-Side, Vol. 1 No. 10 (1820) Various
- Rural Magazine, and Literary Evening Fire-Side, Vol. 1 No. 11 (1820) Various