From 1851 he worked as an apprentice at the "Löwenapotheke" in Halle, and during his time spent in Halle he studied under bryologist Karl Müller.
He worked as an apprentice at the "Löwenapotheke" in Halle. This was from 1851. He studied under bryologist Karl Müller. This was during his time. This time was spent in Halle.