98 



KANSAS ACADEMY OF SCIENCE. 



Tablk III.— Rattler tests of Kansas vitrified paving brick; testing laboratory, University of 

 Kansas. Tests by 15 per cent, volume method. Averages of two tests. 



Location and brand. 



Date. 



g's- 



Per cent of loss at end of certain revolutions. 



100 200 400 600 800 1,100 1,400 1,800 



Lawrence, 1st kiln. . 

 Lawrence, 2d kiln. . 

 Lawrence 



Lawrence 



Lawrence, top of 

 kiln, hardest 



Lawrence, body of 

 kiln 



Lawrence, bottom of 

 kiln, softest 



Lawrence 



Lawrence 



Lawrence 



Lawrence, single 

 stream 



CofiEeyville 



Coli'eyyille 



Coileyville, water- 

 soaked 48 hours . . . 



Pittsburg 



Pittsburg, water- 

 soaked 60 hours — 



Topeka, "Capital 

 City" 



Topeka, water- 

 soaked 40 hours ... 



Leavenworth 



Leavenworth 



Leavenworth, bev- 

 eled edges — 



Veedersburg, Ind., 

 " Poston block". .. 



Galesburg, 111., Pur- 

 ington Co 



Galesburg, water- 

 soaked 48 hours — 



Des Moines, Iowa, 

 "Capital City" — 



Des Moines, "Flint 

 Co." 



Des Moines, "Iowa" 

 and "Flint,"mixed, 



Dec. '99 

 Dec. '99 

 Jan. '00 

 Jan. '00 



Feb. '00 



Feb. '(30 



Feb. '00 

 Mar. 'CO 

 Mar. '00 

 Mar. '00 



May '00 

 Jan. '00 

 Jan. '00 



July '00 

 Jan. '00 



July '00 



Jan. '00 



July '00 

 Jan. '00 

 Jan. '00 



July '00 



July '00 



Feb. '00 



July '00 



Jan. '00 



Jan. '00 



Jan. '00 



24 

 24 

 23 

 24 



26 



26 



24 



23 

 25 

 22 



24 

 23 

 23 



23 



25 



25 



29 



29 

 23 

 22 



27 



14 



24 



24 



22 



23 



21 



28 



28 



28 



27.5 



28 



27 



28 

 29 



28 

 28 



27.5 



28 

 28 



27 



28 



29 



28 



29 



28 

 28 



6.0 



10.8 

 7.0 



8.8 



5.5 



7.0 



7.6 

 5.9 

 6.6 



5.8 



5.2 

 5.5 



4.9 



2.1 

 5.1 



2.6 



7.9 



5.1 



4.6 

 5.6 



6.0 



5.0 



6.6 



4.8 



4.7 



7.2 



5.5 



10.8 

 16.7 

 12.2 

 15.3 



9.4 



11.6 



13.8 

 10.3 

 12.5 

 10.2 



9.0 



8.6 

 8.6 



3.6 



86 



4.7 



13.6 



10.0 

 7.9 

 9.6 



7.7 

 11.3 



8.2 



8.2 

 13.1 



9.5 



17.5 

 25.5 

 20.0 

 25.6 



18.5 



20.1 



23.4 

 16.9 

 21.2 

 16.9 



14.7 



13.6 

 13.0 



5.7 



13.7 



7.2 



22.2 



16.7 

 13.2 

 15.2 



12.1 



12.6 



17.0 



12.9 



14.0 



20.4 



15.5 



22.1 

 31.1 



26.0 

 32.5 



24.8 



25.8 



30.7 

 21.3 



26.8 

 22.6 



19.2 

 17.6 

 16.5 



6.9 

 17.6 



28.2 



23.4 

 17.7 

 19.1 



16.2 



16.1 



21.0 



16.8 



19.0 



25.9 



20.1 



26.2 

 35.2 

 30.4 

 36.2 



29.5 



31.2 



36.7 

 26.7 

 30.8 

 27.9 



23.0 

 20.2 



18.6 



8.0 

 20.6 



12.1 



34.2 



28.0 

 21.2 

 22.1 



19.7 



18.5 



24.9 



20.5 



22.8 



29.6 



24.1 



31.4 



40.0 

 35.6 

 43.4 



36.7 



36.3 



42.6 

 32.1 

 35.4 

 33.9 



27.7 

 23.5 



21.8 



24.8 



15.2 



39.0 



33.6 

 25.1 

 26.4 



23.5 



21.9 



28.0 

 25.0 

 26.8 

 33.0 



28.2 



35.7 

 43.6 

 39.1 

 47.1 



41.8 



41.5 



45.9 

 36.3 

 39.5 



3s. 8 



31.8 

 27.0 

 24.3 



12.0 

 27.9 



18.2 



43.3 



40.1 

 29.5 

 30.6 



27.0 



23.7 



30.7 



28.7 



30.3 



35.6 



31.5 



39.8 

 47.8 

 43.4 

 50.4 



47.3 



45.4 



50.7 

 40.0 

 43.2 

 45.1 



36.1 

 29.0 

 27.0 



15.3 

 31.9 



21.5 



47.4 



42.7 

 34.7 

 33.7 



30.8 



26.0 



33.5 



32.4 



33.2 



39.9 



34.9 



Table IV.— Rattler tests of Kansas vitrified paving brick ; testing laboratory. University of 

 Kansas. Shot tests. Averages of two tests of twelve brick each. 



