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Page:Popular Science Monthly Volume 19.djvu/421

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of Maine"; "Bituminization of Peat, and its Conversion into Coal"; "An Account of the Catlinite or Indian Pipe Quarry"; "The Lava of the Volcano of Kilauea in Hawaii, and its Chemical Composition"; "Remarks upon Drift and upon the Organic Matters of Soils"; "The Lake Superior Copper Region"; "The Asphaltic Coal of New Brunswick"; "The Discovery of Fossil Fish in the Coal Formation of New Brunswick"; and a few papers of more limited interest.

To the "Proceedings" of the Association of American Geologists he has furnished descriptions of the veins of tin-ore in Jackson, New Jersey, and "Remarks upon the Zinc, Copper, and Lead Ores of New Hampshire." To the "Proceedings" of the American Association for the Advancement of Science, "Observations of a Mirage seen at Lake Superior"; "Remarks on the Geology, Mineralogy, and Mines of Keneewaw Point"; "On Ancient Pot-holes in Rocks"; "Description and Analysis of Allanite from Franklin, New Jersey"; "Description of Bismuthic Tellurium from Virginia"; "On the Artificial Minerals from an Iron-Furnace in Pennsylvania"; and other papers. To the "Proceedings" of the American Academy of Arts and Sciences, "Remarks upon a Large Vein of Phosphate of Lime found in New Jersey"; "Analysis of Water"; "Analysis of Bornite from Georgia"; "Results of an Examination of the Frozen Well of Brandon, Vermont"; and "An Analysis of Meteoric Stone found in Dakota." To the Memoirs of the Academy he contributed, jointly with Mr. Francis Alger, a valuable paper on the "Mineralogy and Geology of Nova Scotia." Reports of analyses of soils made by him were published in the "American Quarterly Journal of Agriculture"; and he published in the "Boston Medical and Surgical Journal" an article on the existence of nitrogen in plants and its origin in animals. He also contributed to journals in Edinburgh; and to the "Comptes Rendus," of the French Academy, "Observations sur quelques mines des États-Unis et sur le grès rouge de Lac Supérieur"; "Courans Marines"; "Nouveau gisement de Trilobites"; "Sur les gisements d'or dans le Géorgie"; "Sur le Bornite de Dahlonega et sur les diamants de l'État de Georgie"; and other papers. His more elaborate works are the three reports on the "Geology of Maine," published in 1837, 1838, and 1839; reports on the "Public Lands of Maine and Massachusetts" (1837 and 1838); the "Report on the Geology of Rhode Island" (1840); "Reports of the Geology of New Hampshire" (1841, 1842, 1844); "Report on the Mineral Lands of the United States in Michigan" (1849, with maps). He also published the results of chemical researches on the cotton-plant, the tobacco-plant, on Indian-corn, and on thirty-eight varieties of American grapes, which v/ere embodied in the Patent-Office reports, and a "Manual of Etherization, with a History of its Discovery" (1863).

Dr. Jackson died on the 29th of August, 1880, after having suffered for many years from an affection of the mind.