"The management of the prison farm, Princetown," reads the report, "has converted a large tract of poor waste land into some of the most productive enclosures in the kingdom. The farm, which lies in the wilds of Dartmoor, at an elevation of some fourteen hundred to sixteen hundred feet above the sea, ... comprises in all two thousand acres, the whole of which was mere common or unenclosed waste land prior to 1850.... The land is divided into square fields of from fifteen to twenty acres by high stone walls, built of granite boulders raised in the prison quarries or from the land as the work of reclamation proceeds. An excellent system of reclamation, with scientific rotation of crops, has been devised. If the herbage fails, or becomes unsatisfactory, the land is again dug up ... but so good has been the management ... that the greater portions of the pasture laid within the last fifteen or twenty years are now in far too good a condition to require rebreaking. One field which twenty years ago was mostly rushes is now able to carry a bullock per acre through the summer. No purer or cleaner pastures are to be found anywhere.... Sixty-seven acres of meadow land have been laid out for irrigation and utilisation of the sewage from the prison establishment, which at times numbers upwards of one thousand persons. A dairy herd of forty-five cows is kept, and all the cows are reared.... A flock of four hundred sheep, 'Improved Dartmoors,' is kept and has frequently been successful in the local show-yards. The wool, for so high a district, is remarkably good and of long staple. Pony mares and their produce are run on the fields. One of the ponies bred on Dartmoor won first prize in its class at the Royal Show at Plymouth. Thirty acres of garden are devoted to the growth of garden vegetables, of which all kinds are grown, and much success has been obtained with celery and cucumbers. The whole of the work is done by convicts, without the aid of horses except for carting."