11. Chemistry in its application to agriculture and physiology Author(s): Liebig, Justus, Freiherr von, 1803-1873 Publication: Philadelphia : T. B. Peterson ..., 1847 Subject(s): Organic Chemistry PhenomenaChemical PhenomenaChemistry, Agricultural
12. Familiar letters on chemistry, and its relation to commerce, physiology, and agriculture Author(s): Liebig, Justus, Freiherr von, 1803-1873 Publication: New York : Appleton, 1843 Subject(s): Chemical Phenomena