5 books
On European Spiders. Part I. Review of the European Genera of Spiders,
On European Spiders
On European Spiders, Vol. 1: Review of the European Genera of Spiders, Preceded by Some Observations on Zoological Nomenclature, With One Plate (Classic Reprint)
Remarks on Synonyms of European Spiders (Classic Reprint)
On European Spiders (Volume 1 )
