The coast sand-barrens have been converted into pasture-lands that produce draught-horses, beef cattle, and dairy cattle. The horses find a ready market in the United States and the large European cities; the dairy cattle not needed at home are exported, the United States being a heavy purchaser. The beef cattle are grown mainly for the markets of London. Dutch butter is used far beyond the boundaries of the state, and Edam cheese reaches nearly every large city of Europe and America. The sugar-beet is extensively cultivated, in spite of the great trade resulting from the cane-sugar industry of the East Indies. It is more profitable to import wheat from the United States and rye from Russia in order to use the land for the sugar-beet. Practically no timber suitable for lumber manufacture exists, and building material therefore must be imported. Pine is purchased from Russia, Scandinavia, and the United States. Stone is purchased wherever it may be obtained as return freight, or as ballast. The coast fisheries yield oysters, herrings, and "anchovies," which are not anchovies, but sprats. For want of coal and iron there are few manufactures, and the garden and dairy products are about the only export articles. There is an abundance of clay, and of this brick for road-making, tiles for building purposes, and porcelains are made. But little of the raw sugar is refined; most of it is sold to foreign refiners, and the United States is one of the chief customers. Holland is a great commercial country, and for more than five hundred years the Dutch flag has been found in almost every large port of the world. Much of the commerce is derived from the tobacco, sugar, and coffee plantations of the Dutch East Indies. A very large part of the commerce, however, is neither import or export trade, but a "transit" commerce. Thus, American coal-oil is transferred from the great ocean tank-steamers to smaller tank-boats, and is then carried across the state into Germany, France, and Belgium, through the numerous canals. This trade applies also to many of the products of the German industries which will not bear a heavy freight tariff, such as coal, ores, etc. It reaches the Rhine and Rhone river-basins and extends even to the Danube. Both Switzerland and Austria-Hungary send much of their exports through Holland. All trade at the various ports and through the canals is free, it being the policy to encourage and not to obstruct commerce. _Amsterdam_, the constitutional capital, is one of the great financial and banking centres of Europe. The completion of the Nord Holland canal makes the docks and basins accessible to the largest steamships. Diamond-cutting is one of the unique industries of the city. Since the discovery of the African mines its former trade in diamonds has been largely absorbed by London.