Geology and Natural History. 899 
of the State Beery. Professor T. C. CoampBertin of Beloit Col- 
lege, and Mr. Mosxs Srrone, Mining Engineer, as assistant geol- 
gists ; and Professor W. W. DaniEts, of the State University, as 
chemist. The appropriation was $13, 000 annually for four years. 
The name of the Chief Geologist was a guarantee that the 
work would be faithful and e wie 
nian bit toe with Major T. B. Brooks, of “the Michigen pat the 
work being really but an extension across the State line of his pre- 
vious labors in Michigan. By the close of the last season one-third 
of the State had been examined in detail, and very many interest- 
ing facts developed. Reports have been made sufficient to fill a 
large quarto volume, accompanied by hundreds of illustrations 
and over a hundred detailed maps. ‘hese maps embrace all the 
ni possible to act upon them; it having been the aim of the 
corps to put as much of the work ‘as possible in this permanent 
form. They are oomplels for all portions of the State examined, 
and include geological, topographical, agricultural and other 
maps, accompanied by large general sections, all drawn on a scale 
of two inches to the mile. 
The entire lead region has been epee erin surveyed and 
mapped with coutour lines at a dista ifty fee he as 
recommended by Whitney in “is report on the same region. 
inv estigation of the eesia rocks and ores of the Penokie Iron 
Range of Ashland County. The range is thirty miles in length 
in Vina and about a mile in width at base. Several streams 
break through it from the southward, affording magnificent sec- 
tions of its rocks, and on its flanks the siliceous ores “that form its 
mass everywhere outcrop in. precipitous exposures. These out- 
crops have been measured and the ore sampled and analyzed. 
The report on this range alone would form a volume of consider- 
so 
able yeas with e scores of illustrations. 
rn Wisconsin has been nearly or entirely hace he by P of. 
Chamberlin’ s party. He has been able to e the Nia ara 
limestone into several subordinate "eemnations. s also 
sia pid new and interesting facts bearing on the drift phe- 
nomena of a region most remarkable for - ore surfaces, 
giant kettles, boulder clays and moraine heaps. He has also 
prepared a series of soil and timber maps of tine region, vin has 
collected no Jess than 14,000 fossils, many of them new form 
