Published in Hedwigia, in 1900, in volume 39, pages 1-79

Published in Hedwigia, in 1900, in volume 39, pages 111-114

Published in Hedwigia, in 1900, in volume 39, pages 115-132

Published in Hedwigia, in 1900, in volume 39, pages 192-193

Published in Hedwigia, in 1900, in volume 39, issue Beibl., pages 76-80