Mustard
an herb belonging to the same family as the horseradish, turnip, rutabaga, radish, shepherd's purse, and pepper-grass. The white mustard and the black, the most commonly known species, are both from Europe. Table mustard is obtained by grinding the seeds of the black mustard. Flour of mustard is obtained by hulling the seed and rejecting the bran,--though with loss of strength. The production of table mustard has assumed large proportions. Natural scenery, both in Great Britain and in America, is defaced by huge lettered signs proclaiming the virtues of some particular brand of table mustard. Mustard is a pest in the great wheat fields of the southwest, where, once established, it perpetuates itself, until weeded out or destroyed by summer fallow. A solution of copperas, sprinkled on the top of the mustard when it is about eight inches high, and before it blooms, destroys the plant. Seventy-five cents for material and labor covers the cost of spraying an acre. Grains and grasses seem to receive no injury from the spray; but turnips and radishes, both of which are members of the mustard family, are injured quite as readily as the mustard itself.