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  1. Asa Gray correspondence. Senders Ra-Ri,
    By: Gray, Asa, - Radlkofer, L. (Ludwig), - Rand, Edward L. (Edward Lothrop), - Rattan, Volney, - Ravenel, Henry William, - Redfield, John Howard, - Reeve, Lovell, - Regel, E. (Eduard), - Reichenbach, H. G. (Heinrich Gustav) - Reinsch, Paul Friedrich, - Reverchon, Julien,
    Contributed by: Harvard University Botany Libraries
    BHL Collections: Harvard University Herbarium, Botany Libraries
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  2. Correspondence : Ravenel (Henry) and Engelmann (George), 1866-1882.
    By: Ravenel, Henry William,
    Contributed by: Missouri Botanical Garden, Peter H. Raven Library
    BHL Collections: Engelmann Papers, Missouri Botanical Garden
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  3. Report of the commissioner of agriculture on the diseases of cattle in the United States.
    By: United States. Dept. of Agriculture. - Billings, John S. (John Shaw), - Capron, Horace, - Curtis, Edward, - Dodge, J. R. - Gamgee, John, - Ravenel, Henry William, - Woodward, Joseph Janvier,
    Publication info: Washington,Govt. Print. Off.,1871.
    Contributed by: Library of Congress
    BHL Collections: Library of Congress
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  4. Report of the Commissioner of Agriculture on the diseases of cattle in the United States
    By: United States. Dept. of Agriculture - Billings, John S. (John Shaw), - Capron, Horace, - Curtis, Edward, - Dodge, J. R. - Gamgee, John, - Ravenel, Henry William, - Woodward, Joseph Janvier, - Making of America Project
    Publication info: Washington,Govt. Print. Off.,1871
    Contributed by: University of California Libraries (archive.org)
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