HAECKEL, Ernst: Two autograph letters signed,

one 4pp, addressed to “Herrn J. A. Leemann (Hannover), Jena, 18 September 1912” Concerning having read Hess’s manuscript, etc. Two pages hand written, with his full signature, one page blank and one printed page about the “Phyletisches Museum in Jena” which ends “Jena, 18 August 1908, Ernst Haeckel”; Addressed to: “Your Highness Lord, Jena, 15, 11, (19)12, one page, fully signed, with three blank pages with “Zoologisches Institut, Der Universitat Jena” headed paper. It deals with the museum; Plus: An autograph postcard signed, six lines, signed in full and dated: Jena, 21 Mai 1912; Plus: Professor Ernst Haeckel (Jena) card, with 4 lines: Addressed to: Herrn Dr. Hanitsch, curator der Raffles Museum, Singapore, Recommending John Leemann, and dated Jena 24 November 1912; Plus: The “Phyletisches Museum, der Universitat Jena, Ernst Haeckel” addressed envelope in Haeckel’s hand, addressed to J A Leemann, Hannover.