254 



CEMENTS, LIMES, AND PLASTERS. 



TABLE 111. Continued. 



1. Quoted by Jameson. "Portland Cement", p. 177. 



2. " ' Smith. Mineral Industry, vol. 1, p. 50. 



3. Haas, & McGraw, analysts. Engineering News, April 30, 1896. "Diamond" brand. 



4. " " " "Star" brand. 



5. Lord, analyst. Rep. Ohio Geological Survey, vol. 6, p. 674. 



6. Quoted by Cummings. "American Cements", p. 35. "Hulme Star" brand. 



7. " " Fern Leaf " brand. 



8. Average of preceding seven analyses. 



9-10. C. Richardson, analyst. Brickbuilder, vol. 6, p. 229. 



Kansas. The natural cements from the Fort Scott district of Kansas 

 are quite close in magnesia percentage and index to those of the Louis- 

 ville district, as can be seen on comparing the analyses given in tables 

 111 and 112. 



TABLE 112. 

 ANALYSES OF NATURAL CEMENTS, FORT SCOTT, KAN. 



1. Quoted by Cummings. "American Cements", p. 35. "Brockett's Double Star" brand. 



2. C. Richardson, analyst. Brickbuilder, vol. 6, p. 229. 



3. "Tests of Metals, etc., at Watertown Arsenal", for 1897, p. 403. 



Maryland. The Cumberland and Hancock cements are of partic- 

 ularly high index, carrying large percentages of clayey matter and prac- 

 tically no magnesia. 



Minnesota. Both brands of Minnesota cements are high in mag- 

 nesia and of very low index. 



