Gmelin, John Frederick

, of the same family, although what relation to the preceding is not mentioned, was oorn at Tubingen in 1748. He was the author of several performances on vegetable physiology, and the classification of plants; and likewise published numerous works on the materia medica, and chemistry, mineralogy, and every part of natural history. One of the most celebrated is his edition of the “System of Nature of Linnæus.” He, however, is said to have introduced great disorder into the science, by multiplying the species. He was also the author of a “History of Chemistry,” forming a part of the history of arts and sciences undertaken by the professors of Gottingen. The world is indebted to him for the discovery of several excellent dyes, extracted from vegetable and mineral substances. He died in 1805. ²