Salt Taxation 60 History 29 Salt industry and trade 27 Law and legislation 19 Tariff 13 Excise tax 5 more ... Therapeutic use 5 Coal 4 Fisheries 4 Food 4 Materia medica 4 Meat 4 Mines and mineral resources 4 Alcohol 3 Commerce 3 Physiological effect 3 Salt in the body 3 Salt mines and mining 3 Taxation of articles of consumption 3 Water 3 Atlantic cod fisheries 2 Austrian Succession, War of, 1740-1748 2 Bounties 2 Coal mines and mining 2 Coal trade 2 Customs administration 2 Food industry and trade 2 Foreign relations 2 Health aspects 2 less ...