Detta häfte har digitaliserats i maj 2009 från Library of the New York Botanical Garden av Biodivesity Heritage Library och anpassats för Projekt Runeberg i december 2016 av Ralph E.
This volume was scanned by the Biodiversity Heritage Library and made available by the Internet Archive,
from where the scanned images were copied to Project Runeberg.
We very much appreciate that they have made this possible
and want to encourage other digital library projects to
follow their example. Read more about Project Runeberg's
image sources.