The natural history of Cornwall [microform] : the air, climate, waters, rivers, lakes, sea and tides : of stones, semimetals, metals, tin, and manner of mining : the constitution of the stannaries, iron, copper, silver, lead, and gold, found in Cornwall : vegetables, rare birds, fishes, shells, reptiles, and quadrupeds of the inhabitants, their manners, customs, plays or interludes, exercises, and festivals : the Cornish language, trade, tenures, and arts