The _Dépôt de la guerre_ then became the asylum of those estimable men. This establishment excited and obtained the reverification of the measure of an arc of the meridian, in order to serve as a basis for the uniformity of the weights and measures which the government wished to establish.
MÉCHAIN, DELAMBRE, NOUET, TRANCHOT, and PERNY were dispatched to different places from Barcelona to Dunkirk. After having established at each extremity of this line a base, measured with the greatest exactness, they were afterwards to advance their triangles, in order to ascend to the middle point of the line. This operation, which has served for rectifying a few errors that the want of perfection in the instruments had occasioned to be introduced into the measure of the meridian of CASSINI, may be reckoned one of the most celebrated works which have distinguished the close of the eighteenth century.
The establishment of the system of administration conformably to the constitution of the year III (1795) separated the various elements which the _Dépôt de la guerre_ had found means to preserve. The _Board of Longitude_ was established; the _National Institute_ was formed to supply the place of the _Academy of Sciences_, &c. The _Dépôt de la guerre_ was restored solely to its ancient prerogatives. Two years before, it had been under the necessity of forming new geographical engineers and it succeeded in carrying the number sufficiently high to suffice for the wants of the fourteen armies which France had afterwards on foot.[5] These officers being employed in the service of the staffs, no important work was undertaken. But, since the 18th of Brumaire, year VIII, (9th of November, 1799) the Consuls of the Republic have bestowed particular attention on geographical and topographical operations. The new limits of the French territory require that the map of it should be continued; and the new political system, resulting from the general pacification, renders necessary the exact knowledge of the states of the allies of the Republic.
The _Dépôt de la guerre_ forms various sections of geographers, who are at present employed in constructing accurate maps of the four united departments. Piedmont, Savoy, Helvetia, and the part of Italy comprised between the Adige and the Adda. One section, in conjunction with the Bavarian engineers, is constructing a topographical map of Bavaria: another section is carrying into execution the military surveys, and other topographical labours, ordered by General MOREAU for the purpose of forming a map of Suabia.