DODGE COUNTY. 375 



Drift.] 



On the railroad between sees. 32 and 33, of Wasioja, the water washed out a ditch to a con- 

 siderable depth so that the following section could be seen: 



Black loam 2 ft. 



Yellow, sandy clay, with some small pebbles below 6 ft. 



Alternations of thin, ferruginous, sandy films and black, or yellowish, sandy clay 4 ft. 



Total 12 ft. 



In the bottom of the ditch was a bluish quartzyte boulder, fifteen inches across, and six 

 inches thick, worn off smoothly on one side by glacial action. The smooth side was polished, but 

 scratched. 



At the crossing of the railroad over a stream a similar section amounting to fifteen feet was 

 seen, except that the bottom clay was dark blue and without the ferruginous films, and contained 

 numerous drift-pebbles, and a piece of Galena limestone. 



In some of the railroad cuttings in Wasioja. some ferruginous concretions of small size and 

 much decayed were seen, with numerous fragments of Galena limestone, and a solitary piece of 

 argillyte. 



Two miles east of Kasson Mr. Watson Houston found a stick twenty-five feet beneath the 

 surface, two feet long and three and a half inches in diameter. It was like Norway pine or tam- 

 arack, with loose texture and coarse annual growths. 



Brick are made from the surface loam at Dodge Center, and three 

 miles east of Dodge Center. At Kasson are made brick and drain tiles, 

 for which, however, the clay is obtained at Mantorville. 



Lime is burnt in sec. 17, Milton, from the strata of the Trenton, and on 

 sec. 10, Milton, from a surface deposit of travertine. 



