EEPOET OF PEOGEESS AND EESULTS, 



FOB THE YEAR 1874. 



BY I. A. LAPHAM. 



During the past year the same parties have heen in the field as in 

 the preceding year, and in addition a party under the charge of Maj. 

 T. B. Brooks, late of tlie Michigan Geological Survey, as will be men- 

 tioned in a subsequent part of this report. I am glad to be able to 

 state that the survey is progressing with reasonable rapidity; the 

 amount of work done being considerably in excess of that of 1873. 



The first annual report of progress and results of the survey was 

 deposited in the ofiice of the governor on the first Monday in Janu- 

 ary, 1874, with ample maps and illustrations, accompanied by the re- 

 ports of the several assistants. It was found impracticable to com- 

 plete the reports of explorations made by the several parties in 1873, 

 in as full detail as is desirable, in time to be presented to the gover- 

 nor on the day required by law. They were accordingly presented in 

 an unfinished condition, with the expectation that additional matter 

 could be annexed when prepared. By a law, approved March 4th, 

 1874," it was provided that the manuscript report of the geological 

 survey then made, with the maps and drawings, should be bound and 

 preserved in the vaults of the office of the secretary of state at Madi- 

 son; hence all such additional matter is necessarily excluded, and is 

 herewith submitted in the form of supplementary reports. 



Tor greater convenience in binding and in future publication, it 

 was decided to make all sections, drawings, and maps, so far as was 

 practicable upon sheets of uniform size; and rules were adopted to 

 secure uniformity in respect to the position of maps and profiles upon 

 the sheets. 



Tracings from the township plats of the government land survey 

 were furnished to the several parties as needed; and as before, they 

 were greatly assisted by the published maps of the several counties. 



