1803, 1873, 19TH, 69, A, AGE, AGRICULTURAL, ALL, AN, AND, ART, ARTWORK, AS, AT, BIOLOGICAL, BW, CENTURY, CHEMIST, CHEMISTRY, CONTRIBUTIONS, CROPS, DESCRIBED, DEVISED, DIED, DISCOVERED, DISCOVERY, DRAWING, EFFECT, ESSENTIAL, EUROPEAN, FAMOUS, FATHER, FERTILIZER, FIGURE, FOR, FORMULATION, GERMAN, GREATEST, HE, HIS, HISTORIC, HISTORICAL, HISTORY, ILLUSTRATION, IMPORTANT, IN, INDIVIDUAL, INDUSTRY, IS, J, JUSTUS, KNOWN, LABORATORY-ORIENTED, LAW, LIEBIG, MADE, MAJOR, MALE, MAN, MEN, METHOD, MINIMUM, MODERN, NITROGEN, NOTABLE, NUTRIENT, NUTRIENTS, OF, ON, ONE, ORGANIC, ORGANIZATION, PEOPLE, PERSON, PERSONALITIES, PERSONALITY, PLANT, PORTRAIT, PROFESSOR, REGARDED, SCIENCE, SCIENTIST, SOURCE, TEACHER, TEACHERS, TEACHING, THE, TIME, TO, VON, WAS, WELL-KNOWN, WHICH, WHO, WORKED,