704 THE JOURNAL OF GEOLOGY. 



publication adopted. The second volume of the final report, of 

 the same size and style as the first, was published in 1888. This 

 covered subtantially the central third portion of the state. These 

 volumes contain no palaeontology, but are devoted to a descrip- 

 tion of the geological features, with frequent references to the 

 economic resources of the areas described. The state is being 

 mapped by counties, and each chapter of these reports is accom- 

 panied by a colored and contoured map of the county it describes. 

 There is to be no large atlas in sheets three or more feet square, 

 but a book-atlas, in quarto size, will constitute one of the final 

 volumes, made up of all the county maps, or plates, with brief 

 descriptive text for each. The third volume of the final report 

 has been under way for two or three years. It is devoted to the 

 palaeontology of the Lower Silurian, i. e., the formations above 

 the St. Peter sandstone and up to and including the Galena lime- 

 stone. If there be no interruption of the survey, it will be con- 

 cluded in the same style by the publication of one other volume 

 (fourth) of the final report, which will present the geology and 

 lithology of the northern part of the state. 



In addition to the annual and the final volumes a third serial is 

 maintained, appearing in independent parts at irregular intervals, 

 embracing more carefully considered investigations, which arise 

 in the progress of the general research, which, yet, cannot be 

 accepted as finished, but ought to be preserved. Of these occa- 

 sional publications, which are called "bulletins," ten have been 

 issued, and the eleventh is in preparation. 



The administration of the survey, in all its departments, was, 

 till 1 89 1, in the hands of the writer, but at that date the botan- 

 ical, the zoological, and the topographical departments were 

 erected into independent surveys, and different members of the 

 faculty of the university were appointed to conduct them. It 

 has been the policy of the writer to conduct the survey, as far as 

 possible, in the interests of the people of the state, in the imme- 

 diate and economical sense. The plans that have been adopted 

 have been almost always submitted to the regents, or their execu- 

 tive committee, prior to their execution. In some instances 



