208 BTTT.T.KTTN 101), UNITED STATES NATIONAL, MUSEUM. 



subassistant. In working up the various departments it was an- 

 ticipated that the volunteer services of scientific experts could bo 

 secured, to a reasonable extent, for the privilege of retaining ex- 

 amples of new and rare species. The personnel of the corps was 

 thus constituted as follows: Alexander Winchell, State geologist, 

 $1,000; Manly INIiles, assistant, in charge of zoology, $750; Albert D. 

 White, subassistant to the State geologist, expenses; E. Doge, 

 taxidermist and laborer, expenses and $1 a day. 



Collaborators engaged: Prof. Abrain Sager, Ann Arbor, arach- 

 nida, myriapoda, and Crustacea; J. L. LeConte, Philadelphia, cole- 

 optera. 



Volunteer collectors: J. H. Goodsell, Pontiac; N. H. Winchell, Ann 

 Arbor, botany; E. E. Baldwin, Ann Arbor, botany; E. P. Austin, 

 of Lake Suney, entomology. 



The State geologist began field w^ork by spending a week at the 

 fishing station of George Clark on the IMaumee River, where two 

 barrels of fishes were preserved in alcohol, embracing all the forms 

 captured in the fishing nets, as also several skins of the larger species, 

 and about a bushel of Unionidae, most of which were preserved with 

 the animals in alcohol. 



In entering upon the geological work it was deem.ed advisable to 

 make a fresh reconnoissance of all parts of the State. Since the close 

 of the field work in the Lower Peninsula, in 1840, the opportunities 

 for observation had been much increased, and the methods of geo- 

 logical investigation had become more exact and in other respects 

 improved. It was necessary, furthermore, that a geologist new to 

 the field should make a personal acquaintance with it preliminarily. 

 Accordingly, the requisites were procured for travel by private con- 

 veyance and for camping. On INIay 18, the State geologist set out 

 with his assistant to begin work in IMonroe County. Doctor Miles, 

 meantime, was occupied in studying the ornithology of the Saginaw 

 River and Bay, with the aid of an india-rubber boat, a camp outfit, 

 and an assistant. 



The geological reconnoissance extended during the season over 

 the larger part of the four southern tiers of counties of the State 

 and detailed studies were made at all the principal rock exposures, 

 particularly in Monroe, Hillsdale, Eaton. Jackson, and Kent coun- 

 ties. At times, for the purpose of expediting the work, Mr. White 

 traveled alone by private conveyance over a region with few out- 

 crops, and the State geologist visited important points accessible 

 by the public conveyances, the various railroad companies pursuing 

 at that time, though heavily taxed bv the State, a very liberal policy 

 toAvnrd the State survey. Doctor :Miles, after spending some time on 

 the Flint and Saginaw Rivers, traversed Oakland, AVashtenaw, and 



