TY  - JOUR
T1  - On the Present Position of the Question of the Sources of the Nitrogen of Vegetation, with Some New Results, and Preliminary Notice of New Lines of Investigation
JF  - Proceedings of the Royal Society of London (1854-1905)
VL  - 43
SP  - 108
EP  - 116
PY  - 1887/01/01/
UR  - http://dx.doi.org/10.1098/rspl.1887.0114
M3  - doi:10.1098/rspl.1887.0114
AU  - Lawes, J.
AU  - Gilbert, J.
ER  -