GEOLOGICAL AND NATURAL HISTORY SURVEYS. 285 



J. R. Gage, Adolph Schmidt, W. E. Guy, C. J. Norwood, and Alex- 

 ander Leonard, assistant geologists, and Regis Chanvenet, chemist. 



During Pumpelly's management of the survey the board of man- 

 agers consisted of Gov. B. Gratz Brown, ex o-fjicio president; Mr. 

 Edwin Harrison, Prof. Sylvester Waterhonse, Mr. Forrest Shep- 

 herd, and Gen. J. H. Hammond. Governor Brown was succeeded 

 in 1873 by Gov. Silas Woodson. Professor AVaterhouse and General 

 Hammond resigned in the summer of 1872, and their places were 

 filled by A. W. Morris and M. L. Brown. 



The plan of the work adopted by Rumpel ly recognized two classes 

 of investigation: One was the study of the general stratigraphic 

 geology of the State; the other the study of the distribution and 

 manner of occurrence of the various important mineral deposits, 

 which latter investigation he put in charge of specialists or men 

 whose previous experience had proven them especially adapted to 

 the work. 



In harmony with this plan the work on the general stratigraphy 

 was divided into five departments; that is, a survey of the northwest, 

 a survey of the southwest, a survey of the northeast, a survey of the 

 southeast, and a survey of the porphyry regions of the southeast. 

 The work relating to economic geology was divided into three de- 

 partments — namely, a department of iron ores and metallurgy, a de- 

 partment of ores other than iron, a department of fuels and con- 

 struction materials other than iron and wood. 



AYith the retirement of Mr. Pumpelly, Mr. G. C. Broadhead was 

 elected State geologist, assuming charge in July, 1873. Dr. A. 

 Schmidt and C. J. Norwood remained as assistant geologists; Regis 

 Chauvenet, chemist ; Messrs. Alexander Leonard, P. N. Moore, H. H. 

 West, T. J. Caldwell, and C. Heinrichs, assistants. 



The policy of the Pumpelly survey was continued under Broad- 

 head's administration, though a larger proportion of time was de- 

 voted to the preparation of county reports. The examination of the 

 iron ores was continued, and in addition there was begun an ex- 

 amination of the lead deposits of the southwest. Surveys for county 

 reports were made in Jasper, Cedar, Barton, Vernon, Bates, How- 

 ard, Linn, Adair, and Sullivan counties. In 1874, the lead deposits 

 of Cole, Miller, and other central counties were studied, and ex- 

 aminations for county reports were made in Putnam, Schuyler, 

 Chariton, Cole, and Madison counties. 



The survey was discontinued after the year 1874, and most of its 

 working material transferred to tlie State School of Mines at Rolla, 

 the president of which. Dr. Charles P. Williams, was made acting 

 State geologist, with a nominal salary. Little field work was carried 



