biology
Der Kausalitätsbegriff in seinem Verhältnis zum Vitalismus
The concept of causality in relation to vitalism
This hitherto unpublished part of the early work of Gerbert Grohmann (1897-1957) presents the philosophical contribution belonging to his doctoral thesis in natural sciences submitted in 1923 to the philosopher Hans Driesch (1867-1941) at the university of Leipzig, Germany.… read more
Geschichte und Problem des Höherentwicklungsbegriffs
The history and problem of the idea of evolution
The usual picture of the phylogenetic process is that there were first single-celled bacteria-like organisms followed by multicellular,»lower«and later»higher«, rather complex and differentiated forms of life. This succession of evolutionary changes has often been called»evolutionary… read more

Über den Zusammenhang von Biotoptracht und Mimikry bei Schmetterlingen
Wing pattern; ofbutterflies (Lepidoptem) as mirrors ofenvironmental colours and light
Research in the tropics of the southern continents as well as in the temperate regions during the last decades has reve.tled the intimate correlatiun of wing colourstion and Wing pattern in butterflies with the corresponding features of their… read more

Vom Zusammenhang der Zygomorphie mit der Nektarblattverinnerlichung bei den Hahnenfußgewächsen (Ranunculaceae)


Die differenzierte Haltung Goethes und Rudolf Steiners gegenüber dem Mikroskopieren
Das Zellprinzip bei Tier und Mensch: Organismus-bezogene «Selbstaufhebung» in Entwicklung und Lebensfunktionen und das Phänomen der Geschwulstbildung

WEIDEMANN, J. 19862: Tagfalter. Bd. 1 u. 2. (Neumann-Neudamm) Melsungen, 1988.


