+Posology.+ The Pharmacopœial Companion to the Visiting List. A Posological Table of all the Medicines of the British Pharmacopœia, arranged according to their action. By R. T. H. BARTLEY, M.D., M.B. Lond., Surgeon to the Bristol Eye Hospital. Second edition, price 6d. +Post-Mortems.+ Hand-book of Post-Mortem Examinations, and of Morbid Anatomy. By FRANCIS DELAFIELD, M.D., Curator to Bellevue Hospital, New York. Price 15s. +Protoplasm.+ See Theories of Life. +Sewage.+ The Sewage Question: Reports upon the Principal Sewage Farms and Works of the Kingdom, with Notes and Chemical Analyses. By the late Dr. LETHEBY. Price 4s. 6d. “These Reports will dissipate obscurity, and, by placing the subject in a proper light, will enable local authorities, and others interested in the matter, to perceive the actual truths of the question, and to apply them practically.” +Skin.+ Diseases of the Skin. By ERASMUS WILSON, F.R.S., F.R.C.S., Vice-President of the Royal College of Surgeons, England. (See chapters in Gant’s “Surgery”). +Skin.+ Some Diseases of the Skin which are produced by derangements of the Nervous System. By T. STRETCH DOWSE, M.D., F.R.C.P. Ed., Physician to the Hospital for Paralysis and Epilepsy, and Physician, Skin Department, Charing Cross Hospital. Price 2s. +Skin.+ Lectures on Ring-worm and other Diseases of the Skin, due to Vegetoid Parasites. By JAS. STARTIN, M.R.C.S. Price 1s. +Sphygmograph.+ The Use of the Sphygmograph in Surgery. By F. A. MAHOMED, M.D., M.R.C.P. Lond., Medical Registrar, Guy’s Hospital. (See chapter in Gant’s “Surgery.”) +Surgery.+ The Science and Practice of Surgery, being a Complete Text-book. With special chapters by Wm. Adams, F.R.C.S., Deformities. Robt. Barnes, M.D., F.R.C.P., Obstetrics. Morell Mackenzie, M.D., The Throat. F. A. Mahomed, M.D., The Sphygmograph. Hy. Power, F.R.C.S., Ophthalmic Surgery. Laidlaw Purves, M.D., Aural Surgery. C. S. Tomes, M.A., Oxon, F.R.S., Dental Surgery Prof. Erasmus Wilson, F.R.S., The Skin. By FREDERICK J. GANT, F.R.C.S., President of the Medical Society of London, Senior Surgeon to the Royal Free Hospital. Second edition, illustrated by nearly 1000 engravings, new and original, in 2 vols., price 31s. 6d. “Gant’s able and laborious work must be commended.”—_The Lancet._ “Does credit to the author’s thorough surgical knowledge.”—_British Medical Journal._ “Will become one of the most popular Surgical Text-books in the English language.”—_Medical Press._ “A very complete and trustworthy guide to practice.”—_Medical Times._ +Surgery.+ Aids to Surgery. By GEORGE BROWN, M.R.C.S., Gold Medalist, Charing Cross Hospital, Author of “Aids to Anatomy.” Price 1s. 6d. cloth, 1s. paper wrapper.