The distinguished physiologist, Milne Edwards, maintains that the food must contain three hundred and fifteen grains of nitrogen and three thousand three hundred and fifty grains of carbon, otherwise the animal economy loses force, and gradually deteriorates. The data of Frerichs give the same views, and they accord with the observations of the ten years' study of the regimens of the prisons of Scotland. Dumas, in his calculations of the ration of the French army, gives as its equivalent three hundred and thirty-five grains of nitrogen and four thousand nine hundred and fifty grains of carbon. In the prisons and hospitals of England, Scotland, France, and Germany, the dietaries furnish from seventeen to twenty-eight ounces of nitrogenous and carbonaceous food. For a time, the solid ration of the prisons of Scotland was reduced to seventeen ounces, but the prisoners lost weight. In the public institutions of England we find the total quantity of solid food to be as follows: The British soldier receives in home service 45 ounces; the seaman of the Royal navy 44 ounces; convicts 54 ounces; male pauper 29 ounces; male lunatic 31 ounces. The full diet of the hospitals of London furnish from 25 to 31 ounces of solid food, besides from one to five pints of beer daily. The Russian soldier has about 50 ounces; the Turkish more than 40 ounces; the French nearly 50 ounces; the Hessian 33 ounces; the Yorkshire laborer 50 ounces; United States navy 50 ounces; and the soldier of the United States army about 50 ounces, of solid food. XII. The food allowed to the prisoners at Andersonville, according to the statements of the prisoners and other witnesses, was from two to four ounces of bacon, and from four to twelve ounces of corn bread daily; sometimes a half pint to a pint of bean, pea, or sweet potato soup, of doubtful value. Vegetables were unknown. Thus giving a total weight of solid food, per diem, of six to sixteen ounces of solid food. The amount was not constant: some days the prisoners were entirely without food, as was the case at Belle Isle and Salisbury. Neither was the deficiency afterwards made good. The amount given was oftener less than ten ounces than more.