págs. 1-9
págs. 11-15
págs. 17-40
The frequency of deaths resulting from the use of drugs and chemicals in Los Angeles County
R. D. Budd, D. M. Lindstrom, E. C. Griesemer, T. T. Noguchi
págs. 41-49
P. B. Baker, T.A. Gough, B.J. Taylor
págs. 51-62
Two-dimensional thin-layer chronmatography of ganja (Cannabis sativa L.)
S. N. Tewari, J. D. Sharma
págs. 63-67