GEOLOGICAL AND NATURAL HISTORY SURVEYS. 431 



«liure iu relalioM to tJie reception and protection of said final reports, maps, 

 drawings, and cabinet collections: wliich sum shall be deemed and taken 

 as full and final compensation for completing- the same as per act of May. 

 1841. For continuing the meteorological observations in the several coun- 

 ties of this Commonwealth, according to the provisions of the fourth sec- 

 tion of the act of March 21, 1837, .$300: Provided, That the State geologist 

 shall give bond with sufficient sureties, to be approved by the governor, con- 

 ditioned for the completion of the work according to existing laws. 



Administration. — Under the act approved March 29, 1836, Prof. 

 Henry D. Rogers was appointed State geologist, retaining the office 

 until the final abolition of the survey and the publication of the re- 

 port in 1858. He was assisted from time to time as follows : In 1836, 

 by John F. Frazer and James C. Booth; in 1837, Messrs. S. S. 

 Haldeman, A. McKiiiley, C. B. Trego, and J, D. '^^HielpleY, with Dr. 

 R. E. Rogers as chemist. In 1838, Messrs. H. D. Holl, J.' T. Hodge, 

 R. M. Jackson, J. C. McKinney, P. W. Schaeffer, T. Ward, and M. H. 

 Boye were added to the force. In 1839 J. Peter Lesley and Doctor 

 Henderson vrere added in phice of Messrs, Whelple}- and McKinney, 

 who resigned. In 1840 the personnel vras essentially the same. In 

 1841 it was reduced to Messrs. McKinley. Holl, Jackson, Lesley, Boye, 

 and Doctor Rogers. In 1851 the geolog-ical assistants were Prof. E. 

 Desor and W. B. Rogers, jr.. Peter Lesley and A. A. Dalson serving 

 as topographers. 



The salaries of these assistants, as noted, were fixed b}'^ law. That 

 of the State geologist, by the act of 1836, was fixed at $2,000 a year, 

 and those of the assistant geologists and chemist at $1,200 and $1,000, 

 respectively. By the act of 1838 the salaries of a draftsman and 

 subassistant geologists were fixed at $1,200 and $800, respectively. 

 Under the act of 1840 the salaries of the six assistants, including the 

 chemist, were made $1,000 each. 



During the first year of the survey (according to J. P. Lesley) the 

 general order and character of the 13 Paleozoic formations were 

 obtained and the foundation laid for Paleozoic geology in America, 

 requiring no essential change from that time to the present, at least 

 along the Appalachian belt. After the first year the State was di- 

 vided into general geological districts, to the particular study of 

 which the several assistant geologists were from year to year as- 

 signed. Their reports were embodied in the first five of the annual 

 reports of the State geologist to the legislature. 



The work of the first six years was of the nature of a geological 

 reconnoissance of a \&ry thorough character, covering the entire 

 area of the State, amply sufficient at that time for the information of 

 its citizens, largely contributing to the creation of the science of 

 geology, establishing new principles of structure, and mediating 



136075—20 29 



