SKETCH OF DR. CHARLES T. JACKSON. 407
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 Bruns- w^ick"; " 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 Mii'age seen at Lake Superior " ; " Remarks on the Geology, Mineralogy, and Mines of Keneewaw Point " ; " On Ancient Pot-holes in Rocks " ; " Description and Analysis of AUanite 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, " Re- marks upon a Large Vein of Phosphate of Lime found in New Jer- sey " ; " Analysis of Water " ; " Analysis of Bornite from Georgia " ; "Results of an Examination of the Frozen Well of Brandon, Ver- mont " ; and " An Analysis of Meteoric Stone found in Dakota." To the Memoirs of the Academy he contributed, jointly with Mr. Francis Algei*, a valuable paper on the " Mineralogy and Geology of Nova Scotia." Reports of analyses of soils made by him were pub- lished in the " American Quarterly Journal of Agricultui*e " ; and he published in the " Boston Medical and Surgical Journal " an article on the existence of nitrogen in j)lants 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 Etats-Unis et sur le gres rouge de Lac Superieur " ; " Courans Marines " ; " Nouveau gisement de Trilobites " ; " Sur les gisements d'or dans le Georgie " ; " Sur le Bornite de Dahlonega et sur les dia- mants de I'Etat 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 In- dian-corn, and on thirty-eight varieties of American grapes, which v/ere embodied in the Patent-Office reports, and a " Manual of Etheri- zation, with a History of its Discovery " (1863).
Dr. Jackson died on the 29th of August, 1880, after having suUered for many y^ears from an affection of the mind.