In the _Model Stud_, the number of animals varies. There are usually two stallions and about twenty mares, (Arabs, English, Norman, &c.,) in addition to those selected from time to time from among the riding-animals. Attached to it is a botanical garden, more especially for useful and noxious grasses and plants. _School for Breaking Young Horses._--The best horses purchased at the remount dépôts are selected for the officers, and sent to this place to be trained. The number is fixed at 100 as a minimum. These, as soon as their education is complete, are sold or given, according to the orders of the Minister of War, to those officers who need a remount--in preference, to officers of the general staff and staff corps, those of the artillery, and mounted officers of infantry. These officers may also select from among the other horses of the school, with the approval of the commandant. _School of Farriers._--This is attached to the cavalry school, and is under the direction of the commandant. It is composed of private soldiers who have served at least six months with their regiments, and are blacksmiths or horse-shoers by trade. There are usually two men from each mounted regiment. The course lasts two years; it comprises reading, writing, arithmetic, equitation, the anatomy of the horse, thorough instruction as to all diseases, injuries, and deformities of the foot, something of the veterinary art in general, the selection of metals, making shoes, nails, tools, &c., shoeing horses. The establishment has a large shoeing shop and yard, a recitation-room, museum, and store-rooms. In the recitation-room there are skeletons of horses, men, &c., as well as some admirable specimens of natural preparations in comparative anatomy, a complete collection of shoeing-tools, specimens of many kinds of shoes, &c.--_Annuaire de l’Instruction_ 1861, _and_ “_Observations_.” THE SCHOOL OF APPLICATION FOR THE STAFF. AT PARIS. DUTIES OF THE FRENCH STAFF. The staff is the center from which issue and to which are addressed all orders and military correspondence. The officers of the staff are divided into chiefs of the staff, sub-chiefs, staff-officers, and aides-de-camp. The colonels and lieutenant-colonels are employed as chiefs of the staff in the different military districts of France, and in the divisions of the army on active service. The ordinary posts of the majors and captains is that of aides-de-camp to general officers. When several armies are united together under a commander-in-chief, the chief of the general staff takes temporarily the title of _Major-Général_, the general officers employed under him that of _Aide-Major-Général_.