On certain variations in the vocal organs of the passeres : that have hitherto escaped notice / Johannes Muller ; the translation by F. Jeffrey Bell ; edited, with an appendix, by A.H. Garrod.

Licence: Public Domain Mark

Credit: On certain variations in the vocal organs of the passeres : that have hitherto escaped notice / Johannes Muller ; the translation by F. Jeffrey Bell ; edited, with an appendix, by A.H. Garrod. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.