GELATINA Avena, Oat-jelly; a jelly of common oats, recommended by many of the German physicians in all hectic disorders, to be taken with broth of snails and craw-fish.—It is made by boiling a large quantity of oats, freed from the husk, with some hartshorn shavings and currants, together with a leg of veal cut in pieces, and with the bones all broken: these are to be set over the fire with a large quantity of water, till the whole is reduced to a kind of jelly; which when strained and cold will be very firm and hard. A few spoonfuls of this are to be taken every morning, diluted with a basin of either of the above-mentioned broths, or any other warm liquor.