558 rp:port on national museum, is^g. 



Diabase. Nearly black; very fine and compact. Used for foundations and rougli 

 constrnctiou. Near Duluth, Saint Louis Couutj'. United States Government Sur- 

 vey. Teutli Census, 1880. 265G7. 



Nearly black ; fine and compact. Two Harbor Bay, Lake Superior, Lake 



County. Tenth Census, 1880, 2GG34. 



Gabbro. Coarse; dark gray. Used for house trimmings and general building. Du- 

 luth, Saint Louis Couuty. Teuth Census, 1880. 2G443. 



Tliis stone is commercially known as IJalidh granite. 



Massive labradorite. Coarse; compact; light greenish. Three miles East of 

 IJeavcr liay, Lake County. Tenth Census, 1880. 26571. 



Olivine diabase. Lower Silurian ; nearly black; fine and compact. Used for foun- 

 dations and rough construction. Taylor's Falls, Chisago County. Tenth Census, 

 1880. 2(i;V.)l. 



Sandstone. Lower Silurian; fine; brown with light spots. Fond du Lac, Saint 

 Louis Couuty. J. G. McDonald's quarry. Teuth Census, 1880. Two specimens. 

 2G44G. 



liower Silurian ; fine; brown with light spots. Fond du Lac, Saint Louis 



Ccuinty. M. }3oyJes quarry. Tenth Census. 2G447. 



Lower Silurian; line; very light coloied. Hinckley, Pine County. Saint 



Paul and Duluth liailroad. Tenth Census. 26G3G. 



Lower.Silnrian'; iine and friable ; light-colored with ferrnginons blotches. Jor- 



dan, Scott County. Phillip Kipp's quarry. Tenth Census. 2G68G. 

 Lower Silurian ; tine, friable ; very light buff with ferruginous blotches. Jor- 

 dan, Scott County. Phillip Kipp's quarry. Tenth Census. 26687. 



Lower Silurian; light-colored; fine and friable. Dakota, Winona Couuty. 



Quarry of Brown & Hartley. Tenth Census. 2G723. 



Lower Silurian ; gray; fine and friable. Dresbach, Winona County. Quarry 



of J. F. Fostevin,jr. 2G827. 



Purplish brown ; medium. Luverue, Rock Couuty. John S. F. Batelien. 



27407. 



Lower Silurian ; fine; yellow. Mendota, Dakota County. Quarry of Steele & 



Mclntyre. Tenth Census. 26772. 

 Quartzite. Potsdam; maroon; flue and compact. Courtland, Nicollet County. 



Flit/ Meyerding's quarry. Teuth Census. 2G688. 

 Slate, Greenish. 4 by 4 by 1 inches. Near Knife Falls, Carlton County. Saint 



Paul and Duluth Railroad. Tenth Census, 1880. 26488. 



MISSISSIPPI. 

 Limestone. Gray ; finely fossil ifei'ous ; compact. Tishomingo County, 1885. 37580. 

 Sandstone. Very light yellow ; fine; cellular. Tishomingo County. 37581. 



Light colored ; soft and friable. Tishomingo County. 37599. 



Light colored ; medium. Foot cube. Stoniugtou, Jefferson County. 37820. 



Sandstone, argillaceous. Fine; yellow. Rankin Couuty. 37598. . 



MlSSOUlil. 



Magnesian limestone [marble]. Red ; white spotted. Slab 7 by 5 by 1 inches. 

 Iron Couuty. Centennial, 1876. 27123. 



Dull red ; variegated. Sec. 36, T. 33, R. 52, Madison Couuty. Cedar Creek 



•luarry. Teuth Census, 1880. 2G()07. 

 Limestone. Sub-Carliouiferons ; drab; line and compact. Saint Louis. Quarxy of 

 Sehranlva & Veith. 'J'cnih Census, 1880. 26701. 



