798
Sßcretit ber greunbe ber SJiaftmjcfdjidito in SReflenDurg. 2trdjiti,
|jeft 5. 9teu6ranbentmrg 1851; 8°.
93ereiit, öjlerreidjifcfyer Ingenieurs, 1850. cd. 1—21.
SBien; 4°.
Verein, naturforschender zu Riga, Correspondenzhlall 11, 12.
Riga 1851; 8°.
©ufjüad), (gonftant. £>ie ©imdjhwter ber ^olett, fyijlotifd)
erläutert, Sffiieit. 1852 ; 8°.