Goodey, T. 1916. Further observations on protozoa in relation to soil bacteria. Proceedings of the Royal Society of London. 89 (616), pp. 297-314. https://doi.org/10.1098/rspb.1916.0016
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Lawes, J. B. and Gilbert, J. H. 1888. 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. Proceedings of the Royal Society of London. 43 (258-265), pp. 108-116. https://doi.org/10.1098/rspl.1887.0114
Lawes, J. B. and Gilbert, J. H. 1883. XXVI. Supplement to former paper, entitled—"Experimental inquiry into the composition of some of the animals fed and slaughtered as human food.”—Composition of the ash of the entire animals, and of certain separated parts. Proceedings of the Royal Society of London. 35 (226), pp. 342-344.
Lawes, J. B. and Gilbert, J. H. 1879. XXIII. Agricultural, botanical, and chemical results of experiments on the mixed herbage of permanent meadow, conducted for more than twenty years in succession on the same land. Proceedings of the Royal Society of London. 29 (196-199), pp. 230-234. https://doi.org/10.1098/rspl.1879.0043
Lawes, J. B., Gilbert, J. H. and Pugh, E. 1860. On the source of the nitrogen of vegetation; with special reference to the question whether plants assimilate free or uncombined nitrogen. Proceedings of the Royal Society of London. 10 (June 21st), pp. 544-577.
Lawes, J. B., Gilbert, J. H. and Pugh, E. 1860. On the sources of the nitrogen of vegetation; with special reference to the question whether plants assimilate free or uncombined nitrogen. Proceedings of the Royal Society of London. 10, pp. 544-557. https://doi.org/10.1098/rspl.1859.0109
Lawes, J. B. and Gilbert, J. H. 1859. XXIV. Experimental inquiry into the composition of some of the animals fed and slaughtered as human food. Proceedings of the Royal Society of London. 9, pp. 348-361. https://doi.org/10.1098/rspl.1857.0086