DUTY ROSTER.--For any roster the key word should be "equality of all duties." It means the difference between contentment and dissatisfaction among your men. Keep an exact list of men available for every duty and detail them in exact rotation; adjust to complete satisfaction any little differences that arise. Let the men know that you want to give them a square deal and they will respond. The longest man off duty is the first man to be called. In the regular service the roster covers guard duty and other duties, notably kitchen, police and other fatigue work. MONTHLY RETURN.--The form is self explanatory. Read the instructions on the blanks before filling them in. By keeping in the company a record of events you can easily fill out the return properly when the time comes. SERVICE RECORD.--References in Army Regulations: Paragraphs 115, 118, 124, 135, 138, 938, 1337, 1361, 1451, 1535. Article 16. The service record is a complete personal history of the soldier and follows him wherever he goes. It contains: a descriptive list, report of assignment, record of prior service, current enlistment, military record, record of allotments, clothing account and settlement, deposits, indorsements (this latter to give reasons for change of status or station of the soldier). DISCHARGE.--Discharges are of three kinds: honorable, dishonorable and plain discharge. The first is on a white sheet and entitles the soldier to re-enlist; the second is on a yellow sheet and is given following sentence of a general court-martial; the third is on a blue sheet and is given on account of physical disability--it does not entitle the soldier to re-enlist. FINAL STATEMENT, a.r., Art. 21.--The final statement is issued to every enlisted man upon his discharge unless he has forfeited all pay and allowances and has no deposits due him. The final statement is not to be prepared on the type-writer. Money amounts shall be written in both figures and words. The final statement should show the amount due the soldier for: additional pay; clothing; deposits; pay detained; miscellaneous causes. It also should show the amounts due the United States by the soldier for various reasons. In addition it should also state the period covered by the last pay of the soldier. Officers signing and certifying to the various entries are responsible. MUSTER ROLL. a.r. ARTICLE 42.--The muster roll is made bi-monthly and great care should be taken in its preparation to make it both correct and complete. All officers and enlisted men are taken up on the muster roll from the date of receipt of notice of assignment. The following are entered on the rolls: 1. Commissioned officers belonging to the organization, in order of rank. 2. Commissioned officers attached to the organization, in order of rank. 3. Non-commissioned officers in order of grade. 4. All others except musicians and privates, alphabetically arranged in order of grade. 5. Musicians. 6. Privates.