Socrates is the most famous victim of hemlock poisoning by drinking the cup of hemlock after being condemned to death in Athens in 399 BC. Lethal poisons are γ‐coniceine and coniine, the two most abundant Conium alkaloids which smell like mouse urine. It causes a shudder that the victim is gradually paralyzed under consciousness and that there is no antidote. Poison hemlock is also strongly poisonous to range animals. Therefore, agriculture suppresses hemlock. Coniine was the first alkaloid made synthetically (Ladenburg, 1866). Today, hemlock poisons have no medical use. We describe the isolation of γ‐coniceine and coniine from home‐grown and wild poison hemlock. Their set of spectra is reported and interpreted. Based on students laboratory work and this time on our own preparative commitment as academic supervisors this project is a follow up of the book “Classics in Spectroscopy” by S. Berger und D. Sicker (Wiley‐VCH 2009).