And for sale by CONRAD & CO. at their stores in Philadelphia, Baltimore, Washington, Petersburg, and Norfolk, _The Philadelphia Medical and Physical Journal_, collected and arranged by _Benjamin Smith Barton_, professor of materia medica, natural history, and botany, in the University of Pennsylvania. Volume I. Price, in boards, 2 dollars. _A System of Surgery_. By _Benjamin Bell_, member of the Royal Colleges of Surgeons of Edinburgh and Ireland, &c. &c. 4 vols. 8vo. Price 14 dollars. _A Treatise on the Fevers of Jamaica_, with some Observations on the Intermitting Fever of America; and an Appendix, containing some Hints on the Means of Preserving the Health of Soldiers in Hot Climates. By _Robert Jackson_, M. D. * * * * * IN THE PRESS, _The Philadelphia Medical and Physical Journal._ Part I. Vol. II. * * * * * Transcriber's note: The original spelling and minor inconsistencies in the spelling and formatting have been maintained. Obvious misprints have been corrected. Partly repeated chapter headings have been deleted.