From NUMBER@1 to NUMBER@2 he studied physics , chemistry , botany , mineralogy , philosophy and medicine at the ORGANIZATION@1 , where he graduated in NUMBER@2 with a dissertation entitled Beiträge zur Hall ` schen PERSON@1 von einem excitomotorischen Nervensystem -LRB- Contributions to the MISC@1 -RRB- .

From NUMBER@1 to NUMBER@2 he studied physics , chemistry , botany , mineralogy , philosophy and medicine at the ORGANIZATION@1 .
