Florida Orange Jelly

Grate the yellow rind of two Florida oranges and two lemons, and squeeze the juice into a porcelain-lined preserving kettle, adding the juice of two more oranges, and removing all the seeds; put in the grated rind a quarter of a pound of sugar, or more if the fruit is sour, and a gill of water, and boil these ingredients together until a rich syrup is formed; meantime, dissolve two ounces of gelatine in a quart of warm water, stirring it over the fire until it is entirely dissolved, then add the syrup, strain the jelly, and cool it in molds wet in cold water.