BULLETIN OF THE UNIVERSITY OF WISCONSIN 



SCIENCE SERIES, VOL, 1, No. 2, pp. 35-56, PLS. 1-3. 



ON THE QUARTZ KERATOPHYRE AND ASSOCI- 

 ATED ROCKS OF THE NORTH RANGE OF 

 THE BARABOO BLUFFS. 



BY 



SAM 



PUBLISHED BY AUTHORITY OF LAW AND WITH THE APPROVAL OF 



THE REGENTS OF THE UNIVERSITY 



MADISON, WIS. 



PUBLISHED BY THE UNIVERSITY 

 JANUARY, 1895 



PRICE 25 CEHTS 



