1820
Research in Progress
Gottfried Engelmann, 1820
Gottfried Engelmann, 1816
Gottfried Engelmann, 1814
Gottfried Engelmann, 1815
Gottfried Engelmann, 1825
Gottfried Engelmann, 1824
Desflorennes, 1820
M[ichel?] Pourchet, 1805, 1820
Gottfried Engelmann, 1818
