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Dr. J. B. Mum

 Dear Sir,-' have made repeated trials of your "ELIxIR OF Or .UM" in the City and Marine Hos- pitals and find possess the anodyne and sedave powers of the ordinary preparation of Opium, with ont producing the exctement headache, nausea, stipaton, which in many render those prepara- tons objectionable. It's effects are more permanent and uniform than those of Morphia. Yours, Sc.

 c. L. MITCHELL, NJ. D.,

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