THE INFLUENCE OF TROPICAL CLIMATES, MORE ESPECIALLY The Climate of India, ON EUROPEAN CONSTITUTIONS; THE PRINCIPAL EFFECTS AND DISEASES THEREBY INDUCED, THEIR PREVENTION OR REMOVAL, AND THE MEANS OF PRESERVING HEALTH In Hot Climates, RENDERED OBVIOUS TO EUROPEANS OF EVERY CAPACITY. AN ESSAY. BY JAMES JOHNSON, Esq. SURGEON IN THE ROYAL NAVY. Non ignarus mali miseris succurrere disco. Study well the clime, Mould to its manners your obsequious frame, LONDON: PRINTED FOR J. CALLOW, MEDICAL BOOKSELLER, 10, Crown Court, Princes Street, Soho. 1 CRITICAL NOTICES OF MR. JOHNSON's WORK, ON THE INFLUENCE & DISEASES OF TROPICAL CLIMATES. "The influence of hot climates on European constitutions, is here placed in a newer and clearer light than in any work with which we are acquainted." London Med. & Phys. Journal, Sep. 1813. "The goal at which our critical Analysis is to terminate, would now be fairly in view, if "the tropical Hygiene," which occupies no small share of a work, in which almost every thing is superlatively excellent, did not stand in our way, and yet remain to be passed in review: Our limits forbid us, however, to bestow that time and that labour upon this part of Mr. JoHNSON's book, which, to borrow his own quotation— "Frestat Argento.' For in no work do we remember to have seen the important object of preserving health in tropical Climates, so ably, so clearly, and philosophically treated. We most earnestly and seriously recommend to the constant study of all those who may be doomed to visit the torrid Zone, this part of our Author's book. The easy, lucid, and entertaining manner in which it is written, cannot fail to render it equally interesting to the Soldier, Sailor, Merchant, or Traveller, as to the Medical part of the community. New Med. & Phys. Journal, Dec. 1813. 66 I highly approve of almost every line in Mr. JOHNSON'S work, which I recommend to all the Medical Gentlemen going to India, as by far the best, and indeed the only good book written on the subject.” “ WILLIAM DICK," principal physician to the East India Company. Vide Dr. Dick's letter to the Editors of the New Med. and Phys. Journal, June, 1814. "This volume contains most interesting and important information. No Medical Men, intended for a tropical field of practice, should proceed to their destination without possessing the book. There is not, in truth, a more faithful or a more judicious guide. It will divest them of those absurd prejudices which ignorance and arrogance have united to give Authority to. It will store their minds with facts of the highest utility, and amply supply them with the surest means of crowning the assiduous exercise of their arduous and important duties with success. Edinburgh Med. & Surg. Journal, for July, 1814, page 319. ΤΟ DR. JOHN HARNESS, F. L. S. ONE OF HIS MAJESTY'S COMMISSIONERS OF TRANSPORTS, SICK AND WOUNDED SEAMEN, &c. &c. &c. SIR, I BELIEVE You will not suspect me of any interested motive in the present Address, since you well know, how rarely I have mingled with the importunate host -"who crowd Preferment's gate." But, Sir, 1 can still remember, after a lapse of many years, the flattering manner in which you conferred on me my First Step of Promotion in His Majesty's Service, when I was very young, both in years |