immutable system, but did exploit the economic opportunities that came its way. The illicit whisky trade demonstrates the entrepreneurial ability of the peasant classes. Agricultural improvement reached the Highlands mostly over the period 1760 to 1850. Agricultural advisors, factors, land surveyors and others educated in the thinking of Adam Smith were keen to put into practice the new ideas taught in Scottish universities. Highland landowners, many of whom were burdened with chronic debts, were generally receptive to the advice they offered and keen to increase the income from their land. In the East and South the resulting change was similar to that in the Lowlands, with the creation of larger farms with single tenants, enclosure of the old run rig fields, introduction of new crops (such as turnips), land drainage and, as a consequence of all this, eviction, as part of the Highland clearances, of many tenants and cottars. Some of those cleared found employment on the new, larger farms, others moved to the accessible towns of the Lowlands. In the West and North, evicted tenants were usually given tenancies in newly created crofting communities, whilst their former holdings were converted into large sheep farms. Sheep farmers could pay substantially higher rents than the run rig farmers and were much less prone to falling into arrears. Each croft was limited in size so that the tenants would have to find work elsewhere. The major alternatives were fishing and the kelp industry. Landlords took control of the kelp shores, deducting the wages earned by their tenants from the rent due and retaining the large profits that could be earned at the high prices paid for the processed product during the Napoleonic wars. When the Napoleonic wars finished in 1815, the Highland industries were affected by the return to a peacetime economy. The price of black cattle fell, nearly halving between 1810 and the 1830s. Kelp prices had peaked in 1810, but reduced from £9 a ton in 1823 to £3 13s 4d a ton in 1828. Wool prices were also badly affected. This worsened the financial problems of debt-encumbered landlords. Then, in 1846, potato blight arrived in the Highlands, wiping out the essential subsistence crop for the overcrowded crofting communities. As the famine struck, the government made clear to landlords that it was their responsibility to provide famine relief for their tenants. The result of the economic downturn had been that