U.S. Regulations of 1861:
			ARTICLE XXVIII.HOURS OF SERVICE AND ROLL-CALLS.
230. In garrison, reveille will be sounded immediately after day-break; and retreat at sunset; the troop, surgeon's call, signals for breakfast and dinner at the hours prescribed by the commanding officer, according to climate and season. In the cavalry, stable-calls immediately after reveille, and an hour and a half before retreat; water-calls at the hours directed by the commanding officer.
231. In camp, the commanding officer prescribes the hours of reveille, reports, roll-calls, guard-mounting, meals, stable-calls, issues, fatigues, &ea 1. To go for fuel-poing stroke and ten-stroke roll. 2. To go for water-two strokes and a fiam. 3. For fatigue party-pioneer's march. 4. Adjutant's call-first part of the troop. 5. First sergeant's call-one roll and four taps. 6. Sergeant's call ?one roll and three taps. 7. Corporal's call-one roll and two taps. 8, For the drummers-the drummer's call.
233. The drummer's call shall be beat by the drums of the police guard five minutes before the time of beating the stated calls, when the drummers will assemble before the colors of their respective regiments, and as soon as the beat begins on the right, it will be immediately taken up along the line.
					ROLL-CALLS.
	234. There shall be daily at least three roll-calls, viz., at reveille, retreat, and tattoo. They will be made on the company parades by the first sergeants, superintended by a commissioned officer of the company. The captains will report the absentees without leave to the colonel or commanding officer.
		235. Immediately after reveille roll-call (after stable-duty in the cavalry), the tents or quarters, and the space around them, will be put in order by the men of the companies, superintended by the chiefs of squads, and the guard-house or guard-tent by the guard or prisoners.
236. The morning reports of companies, signed by the captains and First Sergeants, will be handed to the Adjutant before eight o'clock in the morning, and will be consolidated by the Adjutant within the next hour, for the information of the Colonel; and if the consolidation is to be sent to higher authority, it will be signed by the Colonel and th6 Adjutant.