The extract of Liquorice must be prepared from the _dried_ root, else it cannot be strained bright, and would be liable to fermentation. Chemically, the root [320] contains a special kind of sugar, glycyrrhizine, a demulcent starch, asparagin, phosphate and malate of lime and magnesia, a resinous oil, albumen, and woody fibre. Old Fuller says concerning Nottingham, "This county affordeth the first and best Liquorice in England: great is the use thereof in physick. A stick of the same is commonly the spoon prescribed to patients to use in any Loaches. If (as the men of oeneas were forced to eat their own trenchers), these chance to eat their spoons, their danger is none at all." The Loach, or Lingence, from _ekleigma_, a substance licked-up, has become our modern lozenge. Extract of Liquorice is largely imported as "Spanish" or "Italian" juice, the Solazzi juice being most esteemed, which comes in cylindrical or flattened rolls, enveloped in bay leaves; but the pipe Liquorice of the sweetstuff shops is adulterated. Pontefract lozenges are made of refined Liquorice, and are justly popular. The sugar of Liquorice may be safely taken by diabetic patients. Officinally, the root and stolons (underground stems) of the _Glycyrrhiza glabra_ (smooth) are variously employed; for making an extract, for mixing with linseed in a tea, for combination with powdered senna, sugar, and fennel, to form a favourite mild laxative medicine, known as "Compound Liquorice Powder," and for other uses. The solid juice is put into porter and stout, because giving sweetness, thickness, and blackness to those beverages, without making them fermentative; but Liquorice, like gum, supplies scant aliment to the body. Black Liquorice is employed in the manufacture of tobacco, for smoking and chewing. The Rest Harrow (_Ononis arvensis_), a troublesome weed, very common in our ploughed fields, has a root [321] which affords a sweet viscid juice, and hence it is popularly known as "Wild Liquorice." This is a leguminous plant, called also "Ground Furze," which is a favourite food of the donkey, and therefore gets its botanical title from the Greek word _onos_, an ass. Its long and thickly matted roots will arrest the progress of the harrow, or plough. Medicinally, the plant has been given with success to subdue delirium. It is obnoxious to snakes, and they will not come near it. Other appellations of the herb are Cammock, Stinking Tommy, _Arrete boeuf_, _Remora aratri_, _Resta bovis_, and Land Whin (which from the Latin _guindolum_, signifies a kind of cherry). The plant was formerly much extolled for obviating stone in the bladder. It is seen to be covered with spines; and a tradition exists that it was the Rest harrow which furnished the crown of thorns plaited by the Roman soldiers at the crucifixion of our Saviour. This plant has been long-used as a culinary vegetable, its young shoots being boiled, or taken in salad, or pickled.