72 



Kansas Academy of Science. 



TESTS OF KANSAS STONE AS TO VALUE FOR ROAD MAKING. 



LIMESTONES. 



Alta Vista. 

 Galena 



Cher ty lines ... . 10.51 

 Joplin flint 3.66 



2.62 

 2.37 



3.14 

 5.86 



4.75 

 7.32 



SANDSTONE AND DRIFT. 



Redfield... 

 Lawrence, 



Bandera sandstone . 

 Drift boulders. 



7.81 

 2.22 

 2.54 

 1.51 



5.1 2.60 



22.2 2.64 



15.8 2.66 



26.6 I 2.40 



3.09 4.66 



0.03 0.05 



0.09 0.16 



0.09 I 0.15 



PAVING BRICK, FOR COMPARISON. 



Coffeyville I I 5 



40 I 7.4 I 2.44 I 1.50 | 2.21 I |. 



