On the sources of the nitrogen of vegetation
Subtitle: with special reference to the question whether plants assimilate free or uncombined nitrogen
By: By John Bennet Lawes ... Joseph Henry Gilbert ... and Evan Pugh ... (Abstract)
Publisher: Printed by Taylor and Francis
Published: 1860
Place of publication: London
Language: eng
Number of pages: 16
Notes: From the Proceedings of the Royal society of London for June 21, 1860.