6 Pages in Charles Darwin's Library associated with "people/references - Nilsson"

Die Fauna der Pfahlbauten der Schweiz.
By: Rütimeyer, Ludwig.
Publication info: Basel :Schweighauser,1861.
Pages: Page 143 Page 221
A history of British birds.
By: Yarrell, William,
Publication info: London :John Van Voorst,1839.
Pages: Page 200 Page 200 Page 231 Page 231