PRACTICE XXVI (Continued) 





HBJ<iHT TO WHICH W 



ATER HAS 



RISEN (Inches) 









No. OF Tl'BE 



1 



2 



3 



4 



5 







Number of 

 reading 



Time after starting 

 experiment 



Time of 



each 

 reading 



100-mesh 

 sand 



80-mesh 

 sand 1 



60-mesh 

 sand 



40-mesh 

 sand 



20-mesh 

 sand 



1 



10 minutes 







i 







2 



20 minutes 













3 ' 



30 minutes 













4 



40 minutes 







1 







5 



50 minutes 







1 

 i 



6 



60 minutes 







i 



1 1 j 



7 



70 minutes 







1 ; 



8 



80 minutes 







1 



9 



90 minutes 









10 



100 minutes ' 











11 



110 minutes 









i 





12 



120 minutes \ 







! 





13 



130 miijutes 













14 



140 minutes 











15 



150 minutes.. 













16 



160 minutes 













17 



170 minutes 



i 













18 



180 minutes 





1 









55 



