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This book is a collection and summary of the literature concerning all phases of the marihuana drug habit. It deals with such topics as the history of the hashish vice, its distribution, its present status in the United States, the source of the plant, the technic of ingestion or administration, the hashish experience, acute and chronic effects and the chemistry and pharmacology of the drug Cannabis indica.
There are almost no points of particular ophthalmologic interest, though pupillary dilatation seems to be a fairly constant effect of acute intoxication by the drug.