Berlin, [privately published], 1898. 8vo (18.8 x 13.0 cm). 93 pp.; lithographed frontispiece, several woodcuts. Original pictorial wrappers.

A rarely seen monograph on diseases of parrots in captivity, by an ornithologist from Berlin. The preface is by the German ornithologist Oskar von Riesenthal (author of, e.g., Die Raubvögel Deutschlands und des angrenzenden Mitteleuropas), and dated 1897. Next to nothing is known about the author. A pencilled note, 'Sehr Selten', on the last text leaf, is very true. We have never seen another copy. OCLC reports only two copies in libraries (in Denmark and Germany). Front wrapper chipped at lower inner and outer margin, otherwise very good. Not in any major bibliography.