AbstractReferences1. Mechoulan, R. : Marihuana chemistry. Science 168: 1159, 1970.2. Nilsson, 1. M. , Agurell, S. , Nilsson, J.L.G. , Ohlsson, H. , Sandberg, F. and Wahlqvist, M. : Δ1 tetrahydrocannabinol ; structure of a major metabolite. Ibid. p. 1228.