1895 108 p., 6 lithographed pls, paperbound (plates loose). Unopened copy. Published in: Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Scarce.
1895 108 p., 6 lithographed pls, paperbound (plates loose, back cover missing). Unopened copy. Published in: Sitzungsberichte der Kaiserlichen Akademie der Wissenschaften. Scarce.
1892 34, 6 p., 2 figs, 2 lithographed pls, disbound (no covers). Unopened copies. Published in: Annalen des K.K. Naturhistorischen Hofmuseums.