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POPULAR SCIENCE MONTHLY.

he was appointed by David Dale Owen to an assistant's position upon the Geological Survey of Iowa, Wisconsin, and Minnesota. In 1850 he was Dr. John Evans's assistant in a geological reconnoissance of Oregon, and spent the greater part of two years in the field. In 1852 he returned to Louisville to work out his report, and to assist his brother in preparing for publication the paleontological results of the Marcy Red River Expedition. In 1853 Dr. Shumard removed to St. Louis to serve as an assistant upon the State Geological Survey organized under Prof. G. C. Swallow. In 1856, appointed State Geologist of Texas, he made a study of the remarkably complete series of rocks occurring in the eastern and central part of that State. The war interfered with his work, which was never resumed. Returning to St. Louis, he died there, April 14, 1869.

Prof. George Clinton Swallow forms one of the striking features in the early history of American geology. On one occasion Prof. A. C. Ramsay, the eminent director of the Geological Survey of

PSM V52 D654 G C Swallow and Charles C Riley.jpg
G. C. Swallow. Prof. Charles V. Riley.

Great Britain, said: "I will say that the names of Dana and Hall, and Hitchcock and Rogers and Silliman and Swallow, and your other scientific men, are as familiar in our mouths as household words." Born on a farm, at Buckfield, Maine, in 1817, George C. Swallow had no great opportunity for education. With ambition and purpose, however, he pushed his way, and in 1843 graduated from Bowdoin College. His interest was chiefly in chemistry in its practical application to agriculture. Immediately on graduation