On cover: Paris, A. Labitte, 1868.

Paged continuously.

1,310 devices, with names of owners and dates of period when used.

Issued in 9 parts, l853-65, anonymously, Silvestre's name appearing only on special t.-p. of each volume and on covers. The work was interrupted by his death in 1867 and the proposed descriptive, comparative and biographic indexes were never published; a short alphabetical index (21 p.) was however issued by the publishers as "livraison X" of the work.