4 Pages in Charles Darwin's Library associated with "flora - Sparganium natans"

Introductory essay to the flora of New Zealand.
By: Hooker, Joseph Dalton,
Publication info: London :Lovell Reeve,n.d..
Pages: Page xxxii
Lake Superior: its character, vegetation, and animals, compared with those of other similar regions.
By: Agassiz, Louis,
Publication info: Boston :Gould, Kendall & Lincoln,1850.
Pages: Page 175 Page 176 Page 177