Military schools and courses of instruction in the science and art of war, / in France, Prussia, Austria, Russia, Sweden, Switzerland, Sardinia, England, and the United States. Drawn from recent official reports and documents. Revised Edition

by Unknown

1st. A description of the building, or work to be destroyed, in all points which may influence the mode of demolition.

2d. A general description of the proposed mode of demolition.

3d. The calculations for the charges of the mines.

4th. The mode of preparing and firing the mines.

5th. An estimate of the men, tools, and materials required and of the time necessary for the operation.

6th. An estimate of the gunpowder.

7th. When electricity is to be employed for firing the mines, a full description of the batteries, etc., is given, with calculations of the number of cells, etc.

The drawings include a plan and such sections as may be required to explain clearly the situations of the various charges of gunpowder, and of the shafts and galleries.

(g.) Submarine Mines.

All officers and a certain number of men are practised in the use of submarine mines.