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Dr. J. B. Num-

 Dear Sir,-' have made repeated trials of your "ELIxIR OF On .UM' in the City and Marine Hos pitals and find it possess the anodyne and sedatye powers of the ordinary preparation of Opium, with ont producing the excitement, headache, nausea, stipation, which in many render those prepara- tions objectionable. Its effects more permanent and uniform than those of Morphia Yours, &c.,

 c. l.. MITCHELL, M. D.,

 Resident Physician, N. York Hospital New-York, February Sth, 1857