Under the guidance of Dr. Humphry Osmond , TV presenter Christopher Mayhew ingests 400 mg of mescaline hydrochloride .
Under the guidance of Dr. Humphry Osmond , TV presenter Christopher Mayhew allows himself to be filmed as part of a Panorama special for BBC TV that is never broadcast .
Under the guidance of Dr. Humphry Osmond , TV presenter Christopher Mayhew ingests 400 mg of mescaline hydrochloride and allows himself to be filmed as part of a Panorama special for BBC TV that is never broadcast .