The natural conditions of existence as they affect animal life / by Karl Semper.

Über Sehorgane vom Typus der Wirbelthieraugen auf dem Rücken von Schnecken / von C. Semper.

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Carl Semper

Works from the collections

The natural conditions of existence as they affect animal life / by Karl Semper.

The natural conditions of existence as they affect animal life / by Karl Semper.

Über Sehorgane vom Typus der Wirbelthieraugen auf dem Rücken von Schnecken / von C. Semper.