An essay towards a system of mineralogy by Axel Fredrik Cronstedt

By Axel Fredrik Cronstedt

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See COMMON FRICTION PRIMER. From Battery. The position of a gun when withdrawn from its firing ; position. A term applied to Front Pintle. , a coast carriage where its axis of rotation it traverses about a point in front of where its center. Fire which Frontal Fire. is directed perpendicularly, or nearly so, to the objects fired at. Frustum. That part of a solid next to a base formed by cutting oft7 the top. Fulcrum. A means of support for a lever about which it turns in lifting or moving a body.

Mine Commander. A coast artillery officer assigned as such in orders from district headquarters. He exercises both administrative and tactical command of a mine command. As an administrative officer it is his duty to have his command supplied material necessary for carrying out the improved scheme of submarine In this he is assisted by a property officer, who is responsible to the defense. mine commander for the material and equipment of the command. Tactically the mine commander is responsible to his battle commander for the condition of the submarine defense material of his command and the efficient service thereof at drill or in action.

Electrician Sergeant. A non-commissioned staff officer. Electrician ser- geants are of two classes. The first class are charged with the immediate supervision, care, and operation of a division of the electrical installations, including searchlights and power plants when necessary, in addition to the duties prescribed for electrician sergeants, second class. Any duty in connection with the electrical installations, including the mechanical work of repairing electrical apparatus and the care and operation of searchlights.

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