KAOLIiNr IN" WISCONSHS". 



21 



occurred iu the midst of the whiter kind. The following are analy- 

 ses of samples from this place: 



XIII. is the raw clay from the exposure furthest down stream. 

 It was averaged from an apparent thickness of three feet. XIY. is 

 the fine portion of XIII. XV. is the raw clay from the next ex- 

 posure ahove along the river bank. It represents an approximate 

 thickness of two and a half feet, XVI. is the fine portion of XV. 

 XVII. and XVIII. are the raw and washed clay from the exposure 

 farthest up stream, still showing the rock structure. XIX. is only 

 partly kaolinized rock from the same place. These analyses nearly 

 all indicate the material lessening in percentage of the alkalies ef- 

 fected by levigation. 



On the west side of the northeast quarter of section 26, town 22, 

 range 5 east, on Mr. Canning's land, several pits and a well have 

 been sunk into kaolinized rock. The decomposition did not appear 

 to extend to any great depth. The following are analyses: 



