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Show .. . . . Tobaooo Impoverish Soli. 1 It baa been calculated that a ton ot tobacce vtthdraws more than a hundredweight hun-dredweight ' of - mineral conao meats from n acre of land. This would appear ap-pear to be an astounding waste-of material, ma-terial, , which must be ot enormous value to the soil, considering that 78 per cent consists of enlclum and potassium potas-sium salts and 15 per cent of magnesium mag-nesium and sodium salts, including nearly 5 per cent of the essential con- j tiHent to all plants phosphoric actl |