The Volunteer movement affords the occasion for teaching, in the most practical form, the duty of self-sacrifice in a worthy cause. In the artificial conditions of modern society, there are multitudes of men, who, in the ordinary exercise of their vocation, are unduly deprived of the opportunities for physical exercise and development. More especially is this true of the younger members of the professional and commercial classes. To them an appeal is now most earnestly made on behalf of the Royal Naval Artillery Volunteers. In taking a part in our drills and exercises, they will do a work beneficial to themselves individually, and conducive to the welfare of their country. N.B.--Any gentlemen wishing to join the Royal Naval Artillery Volunteers, may communicate with Mr. Thomas Brassey, M.P., or Commander St. Vincent Nepean, R.N., at the temporary head-quarters, 4, Great George Street, Westminster. The regular drills of the corps will not be commenced until the drill vessel 'Rainbow' has been moored off Somerset House, and all other arrangements have been completed. Gentlemen are earnestly invited to send in their names, in the meanwhile, provisionally, so that the organisation of the brigade may be completed at an early date; and that the movement at the out-ports may be encouraged by the example of the metropolis. REGULATIONS FOR THE "ROYAL NAVAL ARTILLERY VOLUNTEERS." CONSTITUTION AND ESTABLISHMENT. [Sidenote: Authority.] 1. The "Royal Naval Artillery Volunteers" are raised under the "Royal Naval Artillery Volunteer Act of 1873." They are subject to the provisions of that Act, and to all regulations made with regard to them by the authority of the Admiralty. [Sidenote: Liability to Actual Service.] 2. By Royal Proclamation, the Royal Naval Artillery Volunteers may be assembled for actual service; and whenever so assembled, they will be liable to serve on board any of Her Majesty's ships or vessels employed in the defence of the coasts of the United Kingdom, or in any of the tenders or boats attached to such vessels. They will also be liable to perform all the ordinary duties of the vessel in which they may be embarked, in the same manner as those duties are performed by the regular crews of Her Majesty's ships, except those duties that can only be performed by practical seamen. They will not be required to go aloft, or to attend the fires in the stoke-hole. They will accommodate themselves to the berthing and messing arrangements usual for the Seamen of the Royal Navy. [Sidenote: Corps, definition of.] 3. A Corps is a body of persons who combine, under common rules, to form a part of the Naval Artillery Volunteer Force. The members of a Corps are either enrolled or honorary. [Sidenote: Enrolled Members.] Enrolled members are persons of every grade, whose names are duly entered for service in the muster-rolls of a Corps. [Sidenote: Honorary Members.]