In the north-eastern half of the Orange River Colony perennial irrigation would ensure as good crops, but at a greater expenditure of water. Here the value of perennially irrigated land to land depending on rainfall may be taken as £1 to one shilling in this district, on the high veldt of the Transvaal, and in the south-eastern corner of the Orange River Colony. In the south-western half of the Orange River Colony, it may be taken as £1 to sixpence; in the Eastern Karroo as £1 to threepence; and in the Western Karroo as £1 to a penny. In the north-eastern half of the Orange River Colony the good veldt may be taken as £1 per acre, and perennially irrigated land as £20 per acre.[11] After inquiry, observation, and comparison with other countries, Mr. Willcocks' estimate of the price which could be paid for perennial irrigation is as follows: In parts which lie below 1000 feet above sea-level, situated in the arid or semi-arid region, a water-rent of £2 per annum could be easily paid anywhere near a railway. In semi-arid regions, between 1000 and 2500 feet, a water-rent of £1, 10s. could be paid. Over 2500 feet in height, £1 per acre per annum could be paid. Near important centres the rent could be higher. THE TRANSVAAL The Transvaal, for agricultural purposes, may be divided into the dolomite region,[12] the high, low, and bush veldt, and the south-eastern tracts. The most important is the dolomite region, which, roughly speaking, covers the country within lines joining Vereeniging, Heidelberg, Bethel, Pretoria, Rustenburg, Zeerust, Lichtenburg, Klerksdorp, and the Vaal River from Klerksdorp to Vereeniging--an area of about 15,000 square miles. Johannesburg's rainfall--from twenty-eight inches per annum in the east to twenty-two inches in the west--is the best in the district. Though uncertain in September, October, and November, in January, February, and March rain can always be counted on. The country generally is capable of great agricultural development, an area of some 350,000 acres being capable of perennial irrigation, in addition to the areas irrigated by the existing springs. In addition to the agricultural value of perennially irrigated land, there is the land which without the aid of irrigation can be so cultivated as to give excellent yields, for it is proved that well-manured and tilled crops need only half the rainfall that ill-manured and untilled crops require. [Illustration: ANGORA GOAT (YOUNG EWE)]