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A tumbrel conveying prisoners to the guillotine (19th-century illustration) A tumbrel (alternatively tumbril) is a two-wheeled cart or wagon typically designed to be hauled by a single horse or ox. Their original use was for agricultural work; in particular they were associated with carrying manure. Their most notable use was taking prisoners to the guillotine during the French Revolution.
A mosquito coil is a mosquito repelling incense, usually shaped into a spiral, and typically made from a dried paste of pyrethrum powder.The coil is usually held at the center of the spiral, suspending it in the air, or wedged by two pieces of fireproof nettings to allow continuous smoldering.Burning usually begins at the outer end of the spiral and progresses slowly toward the centre of the spiral, producing a mosquito-repellent smoke.ctive ingredients found in mosquito coils may include: 1  Pyrethrum-a natural, powdered material from a kind of chrysanthemum plant; performance moderate. 2  Pyrethrins-an extract of the insecticidal chemicals in pyrethrum. 3  Allethrin-sometimes d-trans-allethrin, the first synthetic pyrethroid.