846 PROCEEDINGS OF THE WASHINGTON MEETING 



local geologic knowledge to industrial questions. His contributions to 

 theory came late, were few in number, and were broadly founded oil 

 the facts of his own observation. He never entered the field of specu- 

 lation. He epitomized in a single career the fundamental method of 

 science — first, observation, then theory, then verification through re- 

 newed observation, and finally the application of theory to particular 

 cases for the promotion of human welfare — and by thus exhibiting pure 

 and applied science in close and logical association he gave to his com- 

 munity an object lesson of great value. 



Beginning life as a preacher and never ceasing to be a religious in- 

 structor, continuing life as a teacher and remaining a teacher to the 

 end, and bearing in middle life an important administrative trust, he 

 reserved scant time for research ; yet despite these limitations he be- 

 came, in fact as well as by official designation, the first geologist of his 

 state, and he attained the foremost rank in an important department of 

 theoretic and applied geology. Quiet in manner and retiring in dispo- 

 sition, challenging attention by no brilliant and striking theories, refrain- 

 ing from the discussions of the more general problems of his science, 

 and adhering modestly to those of his state and his specialty, he was 

 yet so appreciated b} 7 his fellows that he received the highest honor in 

 the gift of American geologists and the presidency of the greatest body 

 of American scientists. 



BIBLIOGRAPHY 



(Scientific writings only) 



Report on geology of Montgomery county. Geol. Surrey Ohio [Progress Rept. for 

 1869], part III, pp. 137-164, 1 pi. Columbus Printing Company, state printers, 

 1870. Another edition as follows: Nevins & Myers, state printers, 1871, pp. 

 143-171. 



On the occurrence of a peat bed beneath deposits of drift in southwestern Ohio. 

 Amcr. Jour. Sci., second series, vol. 1, 1870, pp. 54-57. 



The geology of Highland county. Geol. Surrey Ohio [Rept. progress in 1870], 1871, 

 pp. 255-294, 6 pis., 1 map. 



The Cliff limestone of Highland and Adams counties Ibid. , pp. 295-309. 



Geology of the Cincinnati group. Hamilton, Clermont, Warren and Butler coun- 

 ties. GeoJ. Surrey Ohio,\6\. i, Geology (did Paleontology, part I, Geology, 1873, 

 pp. 365-418, 2 pis , map. 



Geology of Hamilton county. Ibid., pp. 419-434, map. 



Geology of Clermont county. Ibid., pp. 435-449. 



Geology of Clarke county. Ibid., pp. 450-480, map. 



Report on the geology of Pike county. Geol. Survey Ohio, vol. ii, Geology and 

 Paleontology, part I, Geology, 1874, pp. 611-641, 4 pis., 1 map. 



Report on the geology of Ross county. Ibid., pp. 642-658. 



Report on the geology of Greene county. Ibid., pp. 659-696, 1 map. 



