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.
Contributors: Gilbert, Joseph Henry, Sir, 1817-1901.; Pugh, Evan, 1828-1864.
Publisher: Printed by Taylor and Francis
Published: 1862
Place of publication: London
Language: eng
Number of pages: 577
Subjects: Plants -- Nitrogen.