230 



Mr. I. Roberts. 



[Jan. 31, 



Table I. — Weighings of the Bottom or Vertical Pressures of Wheat. 

 Size of the Aperture used =3 ft. in. x 3 ft. 0in. = 9 square feet. 





Wheat 6 



ft. high 



Wheat 8 ft. high 



Wheat 8 



ft. 9 ins. 



Wheat 51 ft. 9 ins. 





in bin. 



in bin. 



high in bin. 



high in bin. 





<x> 



d 



<o 



d 



© 



d 



© 



d 





)rmant pressui 

 in lbs. 



:tive pressure i 

 lbs. 



)rmant pressui 

 in lbs. 



stive pressure 

 lbs. 



>rmant pressui 

 in lbs. 



;tive pressure i 

 lbs. 



jrmant pressu] 

 in lbs. 



;tive pressure i 

 lbs. 





P 









P 





P 



•< 







938 



















924 



















928 



















874 

















1202 



1034 



1159 



924 



1146 



1003 



1191 



826 





1150 



1024 











1182 



828 





1119 



957 











1145 



832 



Mean 



1157 



954-14 



1159 



924 



1146 



1003 



1172-67 



828-67 



Table II. — Weighings of the Bottom or Vertical Pressures of Wheat. 

 Size of the Aperture used=2 ft. in. x 2 ft. in. =4 square feet. 



Mean 



Wheat 3 ft. high 

 in bin. 



Wheat 4 ft. high 

 in bin. 



Wheat 6 ft. high 

 in bin. 



Wheat 51 ft. 9 ins. 

 high in bin. 



Dormant pressure 

 in lbs. 



Active pressure in 

 lbs. 



| Dormant pressure 

 ] in lbs. 



Active pressure in 

 lbs. 



Dormant pressure 

 in lbs. 



Active pressure in 

 lbs. 



Dormant pressure 

 in lbs. 



Active pressure in 

 lbs. 





457 

 453 

 473 



600 

 585 



502 

 500 

 494 

 500 

 444 





494 



638 

 685 

 702 

 701 



344 

 370 

 349 

 352 





461 



502-5 



488 





494 



681-5 



35375 



