| 1. Drawing and tracing of ordnance, | 3 lessons. |
| 2. Design for ordnance, | 4 “ |
| 3. Application of the theories of the course, | 1 “ |
| 4. Drawing of artillery material, | 1 “ |
| 5. Tracing of batteries, | 1 “ |
The sixth lecture of the fourth part of the course (the fifty-sixth) is partly devoted to the communication of the instructions necessary for the execution of the work of tracing plans of batteries.
Studies in connection with the Artillery Course.
The practical studies which are connected with the artillery course, are,—
| 1. Drawing of ordnance, | 12 | days. |
| 2. The designs for ordnance, | 24 | “ |
| 3. The application of the theories of the artillery course, | 6 | “ |
| 4. The drawings of artillery material, | 26 | “ |
| 5. The tracing of batteries, | 4 | “ |
| Total, | 72 | days. |
The tracing of batteries is executed by the students of both arms, the other tasks by the artillery students alone.
I. DRAWING ORDNANCE (12 DAYS.)
The survey of ordnance consists in constructing accurate sketches of a gun, howitzer, and mortar, in measuring their dimensions, and in giving a description of each of the pieces drawn. It is on this occasion that the students are practiced in the management of instruments to insure precision, such as the étoile mobile, and the sliding compass, &c. One day is devoted to this work.
The tracing of ordnance consists in the execution of a drawing upon colombier paper, containing an exact and detailed representation of a gun, a howitzer, and a mortar, with their projectiles.