Ugressfrø.
Subtitle: Unkrautsamen. Weed seeds. 34 coloured plates of seeds and parts of infructescences of 306 different species of weeds in cultivated ground, with corresponding text and an index of plant names in 11 languages.
Publisher: Gyldendal norsk forlag
Published: 1935
Place of publication: Oslo
Language: nor
Number of pages: 175
Subjects: Weeds.; Seeds.
Other titles: Unkrautsamen.; Weed seeds.
Notes: Text in Norwegian, German, and English in parallel columns.
"The book comprises the seeds of all the flowering and fruiting (phanerogamic) species of weeds which are treated in my book published in 1930: 'Unkräuter im ackerbau der neuzelt' ...  and in addition 101 other species."--Pref.