"_The lock march from the shops to the cells, and from the cells to the shops._ This consists in forming all the men, under the care of each keeper, into a solid column, and requiring them to march off, at the same time, with a uniform step, in a solid body. The object is to prevent the prisoners, "when their cells are unlocked, from flocking confusedly into the yard, and at the sound of the bell for meals, from moving like an undisciplined mob to the mess-room." This is generally an evil hour with prisoners; if any conspiracy or rebellion is under consideration, it is then communicated. In the mode proposed, it is a time of as much order and silence as any other during the day. It is, in fact, a peculiarly favorable time to see the order and regularity produced in Prison by salutary discipline; and if any one hour were to be selected, while the prisoners are awake, in which they do nothing and attempt nothing of an improper character, probably no hour could be found _more_ free from guilt than this. Another regulation of considerable importance in preventing evil communication is, _Not letting the convicts face each other when their business will permit them to face the same way._ This rule may be adopted in shops, for shoemakers, tailors, and weavers: also, among female convicts, when employed in sewing, knitting, and spinning: and on the Sabbath, when assembled in the chapel. In this way, the language of signs, whether by the hands or features, is prevented; for the signs signify nothing if they are not seen. Now if the king of counterfeiters, or a prince in any department of wickedness, can be placed in the end of a long shop, and be permitted to sit with his face towards the convicts, and have them all facing him, he will be very happy in the opportunity of communicating ideas by the language of signs; but, turning his back to the convicts, and his face to the wall, he will feel differently. The principle, therefore, of not permitting the convicts to face each other, when their business will permit them to face the same way, is believed to be one of considerable importance."