Robert Christison, ‘Supplement to the Preceding Paper [by Little] on the Habitual Use of Opium, More Especially the Mode of Cure’, Monthly Journal of Medical Science, 10, 1850, 531–38

Although intemperance in opium has notoriously become a somewhat prevalent vice, both among the working classes and in the wealthier ranks of society in this country, little has been added to our knowledge of its effects from home observation since the account given by me, in 1832, of the trial relative to the insurances of the late Earl of Mar, and the more general summary in the last edition of my book on poisons. The important paper, by Mr Little of Singapore, of which the preceding article is an abstract, appears to me well fitted in the meantime to supply the blank; and it has therefore been presented in this Journal, in an abridged form. The original, contained in a work of no easy access to most readers, is a very long and elaborate disquisition on many points which will interest the general public, and the frequenters of eastern parts, fully more than they will the professional public of Europe. Some entire topics, and many statistical illustrations, have therefore been here suppressed. But the unity and main objects of the treatise have never been lost sight of; and in no particular have the author’s statements and views been altered or even modified.