For more than twenty years this subject has occasioned bitter contention in law courts between physicians as well as attorneys, and in that time no work has appeared that reviewed the entire field judicially until Dr. Clevenger’s book was written. It is the outcome of five years’ special study and experience in legal circles, clinics, hospital and private practice, in addition to twenty years’ labor as a scientific student, writer, and teacher. _Every Physician and Lawyer should own this work._ In one handsome Royal Octavo volume of nearly 400 pages, with 30 Wood-Engravings. =Price, in United States and Canada, post-paid, $2.50, net; Great Britain, 14s.; France, 15 fr.= =DAVIS—Consumption: How to Prevent it, and How to Live with it.= _Its Nature, Causes, Prevention, and the Mode of Life, Climate, Exercise, Food and Clothing Necessary for its Cure._ By N. S. DAVIS, JR., A.M., M.D., Professor of Principles and Practice of Medicine in Chicago Medical College; Physician to Mercy Hospital; Member of the American Medical Association, Illinois State Medical Society, etc., etc. 12mo. IN PRESS. =DAVIS—Diseases of the Heart, Lungs, and Kidneys.= By N. S. DAVIS, JR., A.M., M.D., Professor of Principles and Practice of Medicine in the Chicago Medical College, Chicago, Ill., etc. In one neat 12mo volume. _No. ⸺ in the Physicians’ and Students’ Ready-Reference Series._ IN PREPARATION. =DEMARQUAY—Essay on Medical Pneumatology and Aerotherapy.= _A Practical Investigation of the Clinical and Therapeutic Value of the Gases in Medical and Surgical Practice, with Especial Reference to the Value and Availability of Oxygen, Nitrogen, Hydrogen, and Nitrogen Monoxide._ By J. N. DEMARQUAY, Surgeon to the Municipal Hospital, Paris, and of the Council of State; Member of the Imperial Society of Surgery; Correspondent of the Academies of Belgium, Turin, Munich, etc.; Officer of the Legion of Honor; Chevalier of the Orders of Isabella-the-Catholic and of the Conception, of Portugal, etc. Translated, with notes, additions, and omissions, by SAMUEL S. WALLIAN, A.M., M.D., Member of the American Medical Association; Ex-President of the Medical Association of Northern New York; Member of the New York County Medical Society, etc. In one handsome Octavo volume of 316 pages, printed on fine paper, in the Best Style of the Printer’s Art, and Illustrated with 21 Wood-Cuts. =Price, in United States and Canada, post-paid, Cloth, $2.00, net; Half-Russia, $3.00, net. Great Britain, Cloth, 11s. 6d.; Half-Russia, 17s. France, Cloth, 12 fr. 40; Half-Russia, 18 fr. 60.= =EDINGER—Twelve Lectures on the Structure of the Central Nervous System.= _For Physicians and Students._