Online Book Subjects: Sources Displaying 501 - 550 of 1159 Pages« first ‹ previous … 7 8 9 10 11 12 13 14 15 … next › last » Letter Prestwich, Joseph, Sir,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Prey, Adalbert,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Prout, T. J,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Raspail, F.-V.; Babaud-Laribière, L.,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Rathenau, Walther,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Réaumur, René-Antoine Ferchault de,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Redi, Francesco,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Reichel, Christophorus Augustus,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Reimer, Dietrich,; Dietrich Reimer (Firm); Burndy Library Manuscripts Collection (Smithsonian Libraries); Johann Ambrosius Barth (Firm) Letter Rennie, John, Sir,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Riccardi, Gabriello,; Galilei, Galileo,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Richardson, John, Sir,; Owen, Richard,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Richardson, Thomas,; Stephenson, George,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Robbins, E. H,; Bourne, Benjamin,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Robison, John, Sir,; Nasmyth, James,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Harrison, Thomas,; Pearson, Francis,; Sturgeon, William,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Ritchey, G. W.; Knight, Wm. Henry,; Burndy Library Manuscripts Collection (Smithsonian Libraries); Mount Wilson Observatory Letter Roberts-Austen, W. C. Sir,; Thompson, Silvanus P.; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Roberts, Isaac,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Rochon, Alexis,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Rosenthal, Moriz,; Burndy Library Manuscripts Collection (Smithsonian Libraries); Internationale elektrotechnische Ausstellung Frankfurt am Main) Letter Rossel, M. de; Morel de Vindé, Charles Gilbert Terray, vicomte,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Rounds, William M. F,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Rowland, Henry Augustus,; Carhart, Henry S.; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Rücker, A. W.; Thompson, Silvanus P.; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Rüppell, Eduard,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Russell, Henry Chamberlaine,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Russell, William James,; Thompson, Silvanus P.; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Sabine, Edward, Sir,; Arago, F.; Lubbock, J. W.; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Sabine, Joseph,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Sachs, Julius,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Salkowski, Ernst Leopold,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Salter, John William,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Samuda, Joseph d'Aquilar,; Samuda, Jacob,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Sartorius von Waltershausen, W.; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Scaliger, Joseph Juste,; Drusius, Joannes,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Scherer, Alexander Nicolaus,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Schönbein, Christian Friedrich,; Nicklès, Franc̜ois Joseph Jérôme,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Schröter, Johann Hieronymus,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Smith, James Edward,; Sims, John,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Smyth, William,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Smyth, W,; Rathbone, Theodore William.; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Snell, Friedrich Wilhelm Daniel,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Soemmerring, Samuel Thomas von,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Somerset, Edward Adolphus Seymour, Duke of,; Faraday, Michael,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Sowerby, James,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Sowerby, James de Carle,; Mantell, Gideon Algernon,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Soxhlet, Franz, ritter von,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Spottiswoode, William,; Burndy Library Manuscripts Collection (Smithsonian Libraries) Letter Stanhope, Charles Stanhope, Earl,; Burndy Library Manuscripts Collection (Smithsonian Libraries); London Vaccine Institution. 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