1888.
From ‘Biologisches Centralblatt,’ Bd. VIII. Nr. 3 and 4, pages 65 and 97: April 1888.
------------------------------------------------------------------------
From Essays Upon Heredity and Kindred Biological Problems by August Weismann.
1888.
From ‘Biologisches Centralblatt,’ Bd. VIII. Nr. 3 and 4, pages 65 and 97: April 1888.
------------------------------------------------------------------------