He became a fellow of the Royal Society in 1837; in 1847 he married; and in 1868, after the completion of his masterpiece, the automatic telegraph, he was knighted.
Of his masterpiece that the light seems to grow dim.
The book is in some respects his masterpiece, and its merits are beyond question.
The performance was the occasion of a split among the actors of the Comedie Frangaise, and the new theatre in the Palais Royal, established by the dissidents, was inaugurated with Henri VIII (1791), generally recognized as Chenier's masterpiece; Jean Calas, ou l'ecole des juges followed in the same year.
The original plan of the city, which was prepared by Major Pierre Charles L'Enfant (1755-1825), under the supervision of President Washington and Thomas Jefferson,' was a masterpiece in landscape architecture and in the main it has been preserved.