28o THE JOURNAL OF GEOLOGY. 



soils and of the changes produced by cultivation. The maps 

 showing the agricultural divisions of the state, and showing the 

 relations between the area cultivated in cotton and the total area, 

 were prepared for the Tenth Census, but the survey had the 

 privilege of using the plates. The other illustrations were pre- 

 pared by the survey. This report deals in some detail with the 

 agricultural divisions of the state, and contains many analyses of 

 soils and marls, made partly by the Census and partly by the 

 geological survey. 



In the case of the two reports last named, advantage was 

 taken of opportunities in which work done by the writer for 

 other organizations could be turned to the direct benefit of the 

 survey, thus securing much fuller reports and better illustrations 

 than would have been at all possible with the survey funds alone. 



Cost. — The printing of these reports was paid for out of the 

 general printing fund of the state, at a cost of $6,750, and this, 

 added to the $8,000 directly appropriated to the survey for 

 equipment, field work, and all other purposes, gives $14,750 as 

 the total cost of the survey during these ten years ; an average 

 of $1,475 ps^ annum. 



Before going further it may be well to consider what was 

 accomplished during this decade, to point out the advantages 

 derived from this long period of preliminary work, and to call 

 attention to some of its manifest disadvantages. 



1 ) Every county in the state was visited, and the main fea- 

 tures of the geology and resources of each were ascertained ; 

 descriptions were published of each of these counties, in some 

 cases giving much detail ; the main subdivisions of the geolog- 

 ical formations in the state were established ; the mode of occur- 

 rence and general distribution of the most important mineral 

 resources were described and illustrated by many analyses ; and 

 the agricultural features of the entire state were given with an 

 approach to completeness, thanks to the cooperation of the Tenth 

 Census. 



2) The experience and the knowledge of the territory acquired 



