BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Haeckel, Anna Dating: 24.12.1859
BRIEF OHNE UMSCHLAG Gegenbaur, Carl Author: Gegenbaur, Carl Recipient: Haeckel, Ernst Dating: 07.04.1873
BRIEF OHNE UMSCHLAG Ficalbi, Eugenio Author: Ficalbi, Eugenio Recipient: Haeckel, Ernst Corporation: Laboratorio di Zoologia e Anatomia Comparata della R. Università di Messina Dating: 14.04.1896
BRIEF OHNE UMSCHLAG Ficalbi, Eugenio Author: Ficalbi, Eugenio Recipient: Haeckel, Ernst Corporation: Laboratorio di Zoologia e Anatomia Comparata della R. Università di Messina Dating: 12.04.1897
BRIEF OHNE UMSCHLAG Ficalbi, Eugenio Author: Ficalbi, Eugenio Recipient: Haeckel, Ernst Corporation: Laboratorio di Zoologia e Anatomia Comparata della R. Università di Messina Dating: 13.05.1897
BRIEF OHNE UMSCHLAG Ficalbi, Eugenio Author: Ficalbi, Eugenio Recipient: Haeckel, Ernst Dating: 10.07.1897
BRIEF OHNE UMSCHLAG Buddenbrock, von Author: Buddenbrock, von Recipient: Haeckel, Ernst Dating: 12.04.1907
BRIEF OHNE UMSCHLAG Martens, J... C... Author: Martens, J... C... Recipient: Haeckel, Ernst Dating: 10.05.1897
BRIEF OHNE UMSCHLAG Haeckel, Ernst Author: Haeckel, Ernst Recipient: Allmers, Hermann Dating: 20.01.1860