Twenty-seven lectures are devoted to _fortification_; the first thirteen relate principally to field fortification, statement of the general principles, definitions, intrenchments, lines, redoubts, armament, defilement, execution of works on the ground, means necessary for the defense, application of field fortification to the defenses of _têtes de pont_ and inhabited places, attack and defense of intrenchments, &c., castramentation; six lectures have reference to permanent fortification, on ancient fortifications, Cormontaigne’s system, exterior and detached works, considerations respecting the accessories of defense to fortified places; eight lectures relate to the attack and defense of places, preparations for attack and defense, details of the construction of siege works from the opening of the trenches to the taking of the place, exterior works, as auxiliaries, sketches, and details of the different works in fortifications, plans, and profile, &c. The students also execute certain works, such as the making of fascines, gabions, saucissons, repair of revetments of batteries, platform, setting the profiles, defilement, and construction of a fieldwork, different kinds of sap, plan and establishment of a camp for a battalion of infantry, &c. Under the head of _artillery_, fifteen lectures are given, commencing with the resistance of fluids, movement of projectiles, solution of problems with the balistic pendulum, deviation of projectiles, pointing and firing guns; small arms, cannon, materials of artillery, powder, munition, fireworks for military purposes; range of cannon, artillery for the attack or defense of places or coasts, field artillery, military bridges. The students are practically taught artillery drill with field and siege guns, practice with artillery, repair of siege batteries, bridges of boats or rafts. The ten lectures allowed for the course of _military legislation_ have for their object the explanation of the principles, practice, and regulations relating to military law, and the connection with the civil laws that affect military men. The twelve lectures on what is called _military administration_ relate to the interior economy of a company, and to the various matters appertaining to the soldier’s messing, mode of payment, necessaries, equipment, lodging, &c.