and I close with some hints for the preservation of health in the tropics. I have received great assistance from the able work of Sir Ranald Martin, on "The Influence of Tropical Climate;" of Dr Edmund A. Parkes, on "Practical Hygiene;" and of Dr James H. Pickford, on "Hygiene." JAS. AFRICANUS B. HORTON, M.D. CAPE ST MARY'S, RIVER GAMBIA, WEST COAST OF AFRICA, October 1866. CONTENTS. 1 1 1 2 Definition of the term Climate, The conditions necessary for Soil to affect health, The conditions necessary for Water and Atmosphere to affect health, Army Medical Department, Instructions for Reading Meteorological Intermediate and compound modifications, Physical and chemical objections in estimation of Ozone, The medical division of the year, The daily and yearly periodic changes, M. Cotte's axiom for the consideration of temperature, The effects produced by great heat in shade, . Thermometrical Observations for January, taken on the Gold Coast Thermometrical Observations for August, taken at Accra, Gold Coast, Thermometrical Observations for September, taken at Accra, Gold Thermometrical Observations for October, taken at Christiansborg Castle, Gold Coast, M'Carthy's Island, and Sierra Leone, Thermometrical Observations for November, taken on the Gold Coast 1. THE EFFECTS OF TROPICAL HEAT ON THE GREAT NERVOUS CENTRES, AND ON THE VITAL PROCESSES OF THE INHABITANTS Results of high temperature on Jollof and other tribes residing in 1. ELEVATION OF THE EARTH ABOVE THE LEVEL OF THE OCEAN.— 2. THE GRADUAL INCLINATION OF THE SURFACE AND ITS LOCAL Description of the sites of Bathurst, Bacchou, and M'Carthy's Description of the sites of Monrovia and Cape Palmas Description of the sites of the principal towns on the Gold Coast- 1. THE NEIGHBOURHOOD OF GREAT SEAS AND THEIR RELATIVE POSITIONS.-2. POSITION IN RESPECT TO LARGE RIVERS OR |