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. PRINTED FOR J. CALLOW, MEDICAL BOOKSELLER, 10, Crown Court, Princes Street, Soho. 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, I 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 |