Shortly before his death he was forced to sign an agreement whereby the Byzantine empire undertook to pay tribute to the sultan.
This decree is often called the basis of the Continental System, whereby Napoleon proposed to ruin England by ruining her commerce.
In Hungary and Russia a zone-tariff system is in operation, whereby the charge per mile decreases progressively with the length of the journey, the traveller paying according to the number of zones he has passed through and not simply according to the distance traversed.
The currents actuate a ratchet-wheel mechanism at the receiving station, whereby the hand on a small dial is moved on letter by letter.
For subscribers who desire the telephone for occasional use, the party-line system has been devised, whereby several telephones are connected to one line leading to the exchange.
