The Instructors will exact of the students, in the execution of the practical instructions and in the explanation of them, a demeanor perfectly military, and a tone of voice appropriate to the circumstance. All the students, without exception, should render themselves capable of executing the practical tasks and explanations now mentioned with the greatest perfection.

The Professors, as well as Instructors, in concluding their course of lectures, will transmit to the Director of the School a statement showing the degree of instruction acquired by the students, and their conduct in School; the credit for the instruction and for conduct will be given by means of two distinct integral numbers, selected from two to ten.

Duration of the Course and Subjects.

The course of the Complementary School will be terminated in a year and a half.

The students belonging to two successive promotions will participate in the same instructions during the last six months of the first course, and the first six of the second course.

The subjects which will be taught to the Officer-students of the Complementary School are,—

a. Mineralogy and metallurgy.

b. Introduction to applied mechanics, and application of mechanics to machinery.

c. Theory of the combustion of powder; of the movement inside the bore; of the resistance of ordnance; of the volume, weight, and center of gravity of ordnance; projectiles.

d. Use of artillery in war, construction of batteries, service in the field.