The tone of science fictionfilms is often a guide to the tone of the times the film was made: other worlds and species are viewed in turn as wonderful, terrifying, threatening, incomprehensible, and childishly benign.
... (1885)
Studien (1839-47)
Neue Studien (1875-78).
He published also an autobiography entitled Von Magdeburg nach Königsberg (1873), which deals with his life up to the ...