GEOLOGICAL SUR VEYS IN MISSOURI. 2 1 3 



of a state geologist, who, in turn, was allowed the appointing of 

 not more than four assistants, who were to be skilful chemists, 

 and of such other subordinate assistants as he might deem nec- 

 essary. The work of the survey was to include stratigraphic 

 and structural geology and special studies of economic geology. 

 Annual reports were required, and a final report, or a complete 

 memoir on the geology of the state, was to be prepared on the 

 completion of the survey. Specimens in triplicate were to be 

 collected and forwarded to the Secretary of State ; one set for 

 a cabinet in the state capitol, another for the state university,, 

 and the last for the city of St. Louis. Ten thousand dollars 

 annually for a term of two years were appropriated. 



Pursuant to the instructions of this law. Professor G. C. 

 Swallow was appointed state geologist by the governor in 1853. 

 Professor Swallow came directly from Maine, where he had been 

 engaged in teaching. The survey continued in active operation 

 until, June 1861, under the direction of Professor Swallow. The 

 controlling plan of the work as laid down by him, in the letter 

 of transmittal accompanying his second annual report, was to 

 prepare : " First, an outline of the geology of the state ; second^ 

 a general view of the mineral wealth of the mining districts ; 

 third, an exposition of the agricultural and manufacturing 

 resources of the state ; fourth, reports in detail upon as many 

 counties as possible." 



Five reports were published by this survey, but the second, 

 ■of 447 pages (with which is printed the first, of but four pages) 

 is the only one which embodies the results of field work, and 

 this is the one generally known as the Swallow report. The 

 others are very brief reports of administration and progress. 

 Part I of this Second Annual Report contains chapters by Pro- 

 fessor Swallow on the general geology of the state and two 

 county reports ; Part II contains a chapter by Dr. Litton on the 

 lead mines of southeastern Missouri, &,ncl three county reports 

 by Meek and Shumard, as well as several general cross sections 

 and a short paper on paleontology. 



After the issue of this report the survey continued in active 



