TELEGRAMM Recipient: Haeckel, Ernst Corporation: Deutscher Monistenbund, Ortsgruppe Cannstatt Dating: 21.03.1910
TELEGRAMM Dreier, Johannes; Kottmeier, Johann Friedrich Author: Dreier, Johannes; Kottmeier, Johann Friedrich Recipient: Haeckel, Ernst Dating: 17.02.1894
TELEGRAMM Bismarck, Otto Fürst von Author: Bismarck, Otto Fürst von Recipient: Haeckel, Ernst Dating: 13.02.1894
TELEGRAMM Grazie, Marie Eugenie delle; Müllner, Laurenz Author: Grazie, Marie Eugenie delle; Müllner, Laurenz Recipient: Haeckel, Ernst Dating: 15.02.1904
TELEGRAMM Grazie, Marie Eugenie delle; Müllner, Laurenz Author: Grazie, Marie Eugenie delle; Müllner, Laurenz Recipient: Haeckel, Ernst Dating: 17.05.1911
TELEGRAMM Grimsehl, Carl; Gurlitt, Ludwig; Stabel Author: Grimsehl, Carl; Gurlitt, Ludwig; Stabel Recipient: Haeckel, Ernst Dating: 16.02.1912