HEAL TH PRIMERS. EDITED BY J. LANGDON DOWN, M. D., F. R. C. P. HENRY POWER, M. B., F. R. C. S. J. MORTIMER-GRANVILLE, M. D. JOHA TWEEDY, F. R. C. S. THOUGH it is of the greatest importance that books upon health should be in the highest degree trustworthy, it is notorious that most of the cheap and popular kind are mere crude compilations of incompetent persons, and are often misleading and injurious. Im- pressed by these considerations, several eminent medical and scien- tific men of London have combined to prepare a series of HEALTH PmixM s of a character that shall be entitled to the fullest confidence. They are to be brief, simple, and elementary in statement, filled with substantial and useful information suitable for the guidance of grown- up people. Each primer will be written by a gentleman specially competent to treat his subject, while the critical supervision of the books is in the hands of a committee who will act as editors. SAs .these little books are produced by English authors, they are naturally based very mich upon English experience, but it matters little whence illustrations upon such subjects are drawn, because the essential conditions of avoiding disease and preserving health are to a great degree everywhere the same. VOLUMES OF THE SERIES. Eeroise and Training. (Illus treated ) Alcohol: It UsIe and Abuse. The House and its Surround. inga. Premature Death: Its Promo- Stion or Prevention. Personal Appearancee in Health and Disease. (I1- lustrated.) Bathi and Bathing. The Heart and its Functions. The Head Clothing and Dress. Water. The Skin and its Troubles. Fatigue and Pain. The Ear and I hearing. The Eye and Vision. Temperature in Health and Disease. In square 16mo volumes, cloth, price, 40 cents each. Por sale by ai boobsll. Any volume maoed, pospaid, to any address in the 1United Stats, on receit of price D. APPLETON & CO., Publishrs, 49 & 551 BBOADWAY, Nzw YOx.