The question of road superintendence received early attention from the government of the restoration.
In 1822 he became director of the Seeberg observatory, and in 1825 was promoted to a corresponding position at Berlin, where a new observatory, built under his superintendence, was inaugurated in 1835.
Libraries and archives are under the superintendence of the Ministry of Public Instruction.
As well as the superintendence of the royal stables, he had that of the retinue of the sovereign, also the charge of the funds set aside for the religious functions of the court, coronations, &c. On the death of a sovereign he had the right to all the horses and their equipment in the royal stables.
The Cyclopaedia of Biblical Literature, edited under his superintendence, appeared in two volumes in1843-1845and passed through three editions.