In connection with the experiments described in the foregoing paper the opportunity was taken of determining the digestibility of a proprietary product suggested for use as a feeding-stuff, which was made by subjecting finely-shredded peat moss to the action of hydrochloric acid gas, and subsequently expelling the latter from the residual product. By this treatment appreciable quantities of reducing sugars are produced in the peat moss, amounting in some cases, it is claimed, to 15 or even 20 per cent.