Freshwater Gastropoda. Numerous radula figures of Bythinella, Amnicola, etc., 1888-1904 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
George Washington Tryon Jr. Correspondence. A letter from G.W. Tryon to W.B. Marshall, apparently forwarded to C.E. Beecher., 05 Dec 1877 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
George Washington Tryon Jr. Correspondence. Correspondence from G.W. Tryon to C.E. Beecher., 1887 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
Henry Augustus Pilsbry Correspondence. A letter from H.A. Pilsbry to C.E. Beecher discussing fresh-water mollusca taxonomy and systematics., 1890-1892 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
Henry Augustus Pilsbry Correspondence. A letter from H.A. Pilsbry to C.E. Beecher informing Beecher he has received the collection of Amnicolidae and discussing other species., 14 Feb 1892 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
Henry Augustus Pilsbry Correspondence. A letter from H.A. Pilsbry to William B. Marshall, apparently forwarded to C.E. Beecher informing Marshall he is returning his Amnicolidae named., 18 Mar 1890 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
Henry Augustus Pilsbry Correspondence. Correspondence from H.A. Pilsbry to C.E. Beecher., 1890-1892 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
Localities. Photographs and drawings of localities. Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
Locality information. locality information., 1892 Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…
Locality Information. Locality information including notes and maps. Bookmark Collection Context Yale University -Yale Peabody Museum of Natural History Charles Emerson Beecher Archives, 1888-1904…