14 



KANSAS ACADEMY OF SCIENCE. 



Table III gives the name, age, number of specimens of each kind broken, ratio 

 of sand to cement, and the breaking load of section. 



TABLE III. 



The specimens used to test the transverse strength were rectangular prisms 

 14^^xli^^xl^''. They were broken on supports 12^^ apart, by a weight in the center. 



Table IV gives the name, age, number of specimens of each kind broken, and 

 the breaking load of the above-described prisms of neat cement. 



TABLE IV. 



The specimens used in compression tests were sawed and ground from the broken 

 rectangular prisms. Table V gives the results for these tests. 



TABLE V. 



No attempt has been made to measure accurately the hydraulic energy or quick- 

 ness of setting of these cements, for lack of suitable apparatus. I may state, how- 

 ever, that the time required for the Kansas City and Fort Scott cements to harden 

 sufficiently to be taken out of the mold without breaking, was from two to three 

 hours. The Portland required from four to five hours. 



The Fort Scott cement is being manufactured by two companies. The old works 

 are operated by the Missouri, Kansas <& Texas Cement Company; the new works 

 are operated by the Fort Scott Cement Manufacturing Company. The latter com- 

 pany has six perpetual kilns, one Blake crusher, and a pea mill to aid the crusher. 

 The capacity of the works is 500 barrels per ten hours. 



The Kansas City Cement Works Company was incorporated December 6, 1884, 

 and has been in successful operation for four years. This company has about 



