These three towns may serve as types of the climatic conditions to be met with on the south-western, southern, and south-eastern coast-line respectively. It must be again emphasised that climatically none of the coast resorts are as beneficial for phthisis and chest affections generally as the uplands; but that other factors render them at the present time, and for the immediate future, the most suitable resorts for the seriously ill. And though climatically they are not the best that South Africa can afford, they are, nevertheless, better than most of the European resorts that have hitherto been frequented. For they all afford more prolonged sunshine, and purer air, and are more exempt from the infectivity of overcrowding than is the case with the fashionable recruiting places of Europe. But it is to the highlands of South Africa that we eventually look with confidence as promising the maximum of benefit, which will be available as soon as the difficulties of food and accommodation and social environment are adjusted. From the coast-line a series of terraces rise to the northward, with extreme regularity on the western three-fourths, with less uniformity on the eastern fourth of the southern continent, as far as the Zambesi. Four terraces may thus be distinguished, and are divided as follows:-- 1. The coast plateau comprising the land within fifty miles of the coast, and reaching a level below 1000 feet. 2. The Southern Karroo, the plateau between the Outeniqua and Langenbergen mountains to the south, and the Zwaartebergen to the north. Level from 1000 to 1500 feet. 3. The Great or Central Karroo, the plateau between the Zwaartebergen range to the south, and the Nieuwveld and Roggeveld to the north. Height between 2000 and 3000 feet. 4. The Northern Karroo, stretching north to the Orange River at a level of 4000 feet and over. The Transvaal and Rhodesia, though not commonly included as within the Karroo districts, are high tablelands with similar altitudes, and may be described under this heading. The climate of the coast plateau is similar to that of the seaboard, and much need not be added to the description given under that heading. Visitors to the higher plains of South Africa must be warned to go not unprovided with warm clothing, and to be careful of evening chills. The fall of temperature as night comes is very great. It has been observed that chills which in England usually result in nasal catarrh, in South Africa take the form of intestinal catarrh, and most visitors experience this discomfort soon after arrival.