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                                   AN

                                 ESSAY

                                 ON THE

                           EFFECTS of OPIUM,

                        Considered as a POISON.

                   [Price One Shilling and Sixpence.]




                   AN ESSAY ON THE EFFECTS of OPIUM.

                             Considered as

                               A POISON.

                 With the most Rational Method of Cure,
                        deduced from Experience.

          Directing likewise the proper Means to be used when
            Physical Assistance cannot be readily obtained;

    Necessary to be universally known, for the Preservation of Life.

                           By JOHN  AWSITER,

             Apothecary to the Royal Hospital at Greenwich.

                  —— —— Si quid novisti rectius istis,
               Candidus imperti—Si non, his utere mecum.

                       HORAT. Epist. VI. Lib. I.

                                LONDON:

               Printed for G. KEARSLY, in Ludgate-street,
                               MDCCLXIII.




                                 TO THE

                         President and Fellows

                                 OF THE

                      Royal College of Physicians.


    Gentlemen,

I Was induced to write this Essay, from a Desire of throwing a Light
upon a Subject, hitherto but triflingly, and, at best, obscurely
treated. As I had no beaten Path to direct me, many perhaps are the
Errors that may be traced through every Page.

I do not boast an Ability to enforce my Sentiments with that energic and
expressive Beauty of Style some are so happy to possess. I am no Author,
and can therefore only rely on your _Candour_, in Beh