Dr. Bradley, the editor of the London Medical and Physical Journal, has nearly completed a work on the Practice of Phy

sic.

Dr. Henry has in the press, Elements of Experimental Chemistry.

Recent American Republications.

Observations on the Diseases of the Army. By Sir John Pringle, baronet; late Physician extraordinary to the King, and Physician in ordinary to the Queen of Great Britain. First American Edition. With Notes, by Benjamin Rush, M. D. Professor of the Institutes and Practice of Medicine in the University of Pennsylvania. Edward Earle, Philadelphia.

The Principles of Midwifery, including the Diseases of Women and Children. By John Burns, Lecturer of Midwifery, and Member of the Faculty of Physicians and Surgeons, Glasgow. With Notes by N. Chapman, M. D. Honorary Member of the Royal Medical Society, Edinburgh; Member of the American Philosophical Society, and of the College of Physicians, Philadelphia; Lecturer on Midwifery, and the Diseases of Women and Children, Philadelphia, &c. &c. Edward Earle, Philadelphia.

A Dictionary of Practical Surgery: collected from the best and most original Sources of Information, and illustrated by critical Remarks. Including Observations on the most important Remedies, Applications, Instruments, &c.; a' copious Pharmacopoeia Chirurgica, and the Etymology and Meaning of the principal Terms. The Whole forming a complete Compendium of Modern Surgical Knowledge. For the Use of Students, private Practitioners, and Naval and Military Surgeons. By Samuel Cooper, Member of the Royal College of Surgeons in London. With Notes and Additions, by John S. Dorsey, M. D. Adjunct Professor of Surgery in the University of Pennsylvania. T. and B. Kite, Philadelphia.

The Modern Practice of Physic; exhibiting the Characters, Causes, Symptoms, Prognostics, Morbid appearances, and Improved Method of treating the Diseases of all Climates. By Robert Thomas, M. D. With an Appendix, by Edward Miller, M. D. Collins and Perkins, New-York.

Letters concerning Diseases of the Urethra. By Charles Bell. T. B. Waite and Co. Boston.

Original American Publications.

The American New Dispensatory: containing, General Principles of Pharmaceutic Chemistry; Pharmaceutic Operations; Chemical Analysis of the Articles of Materia Medica; Materia Medica, including several new and valuable articles, the production of the United States; Preparations and Compositions. With an Appendix; containing, Medical Prescriptions; the Nature and Medical uses of the Gases; Medical Electricity; Galvanism; an Abridgment of Dr. Currie's Reports on the Use of Water; the Cultivation of the Poppy Plant, and the Method of preparing Opium; and several useful Tables. The whole compiled from the most approved authors. By James Thacher, A. A. and M. S. 3. T. B. Wait and Co. Boston. 1810.

The American Medical and Philosophical Register; or Annals of Medicine, Natural History, Agriculture and the Arts. Conducted by a Society of Gentlemen. Ezra Sergeant, New York.

Report on the Spotted, or Petechial Fever, made to the Counsellors of the Massachusetts Medical Society, on the 21st June, 1810. T. B. Wait and Co. Boston.

Proposed American Republications.

Adams's edition of John Hunter's Works; with notes, by N. Chapman, M. D. Ed. Earle, Philadelphia."

Thompson's Elements of Chemistry.

Bree, on Disordered Respiration and Asthma. T. & A. Humphreys, Philadelphia.

An Essay on the Causes of the Variety in the Human Species: to which is added, Animadversions on certain remarks made on the first edition of this essay, by Mr. Charles White, in a series of Discourses delivered before the Literary and Philosophical Society of Manchester, in England. Also, Strictures on Lord Kaimes's Discourse on the Original Diversity of Mankind. By the rev, Samuel Stanhope Smith, D. D. President of the college of New Jersey, and member of the American Philosophical Society. The second edition enlarged and improved. J. Simpson and Co. New-Brunswick, New Jersey.

Proposed American Original Publications.

A System of Anatomy. By Caspar Wistar, M. D. Professor of Anatomy in the University of Pennsylvania. T. Dobson, Philadelphia.

From the acknowledged talents of the author, and from his ample experience as a teacher of Anatomy, the public have a right to indulge the highest expectations respecting this work.

Elements of Zoology. By Benjamin S. Barton, M. D. Professor of Materia Medica, Natural History, and Botany in the University of Pennsylvania,

Every cultivator of natural history must feel an anxiety for the appearance of this work. We learn that a considerable portion of it is already printed, and that the work will be publish ed without much further delay.

The Bakerian Lecture for 1809.

On some new Electrochemical Researches on various Objects, particularly the metallic Bodies, from the Alkalies, and Earths, and on some Com binations of Hydrogen.

BY HUMPHRY DAVY, Esq. Sec. R. S. F. R. S. E. M. R. I. A.

From the Philosophical Magazine,

I. Introduction.

I HAVE employed no inconsiderable portion of the time that has elapsed, since the last session of the Royal Society, in pursuing the train of experimental inquiries on the application of Electricity to Chemistry, the commencement and progress of which this learned body has done me the honour to publish in their Transactions.

In this communication I shall, as formerly, state the results. I hope they will be found to lead to some views, and applications, not unconnected with the objects of the Bakerian Lecture: and though many of them are far from having attained. that precision, and distinctness, which I could wish, yet still I flatter myself, that they will afford elucidations of some imporVOL. I.

R