Concordats are undoubtedly conventions of a particular nature.
By the 1859 conventions the state railway system obtained an entry into Paris by means of running powers over the Ouest from Chartres, and its position was further improved by the exchange of certain lines with the Orleans company.
Tompkins in state, and a National Republican in national politics, after 1828 became allied with the Anti-Masonic party, attending the national conventions of 1830 and 1831, and as a member of the organization he served four years (1830-1834) in the state Senate.
The conventions, concluded for a period of sixty years, but terminable by either party after twenty or forty years, retained for the state the possession of the lines (except the southern railway, viz.
Art tended to become schematic, artists were bound by certain limitations and conventions (Egypt under Amenophis IV.