1884.] Determination of Pressures of Granular Substances. 233 



Table VII. — Weighings of the Bottom, or Vertical Pressures of Pea's. 

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





Peas 9 ft. high in bin. 



Peas 49 ft. 6 ins. high 

 in bin. 





Dormant 

 pressure in 

 lbs. 



Active 

 pressure in 

 lbs. 



Dormant 

 pressure in 

 lbs. 



Active 

 pressure in 

 lbs. 





1323 

 1308 



1255 

 1236 



1374 

 1391 



1324 

 1324 



Mean . . . 



1315-5 



1245 5 



1382 -6 



1324 



Table VIII. — Weighings of the Bottom or Vertical Pressures of Peas. 

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





Peas 6 ft. high in bin. 



Peas 8 ft. 7 ins. high 

 in bin. 



Peas 49 ft. 10 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. 





723 

 690 



544 

 597 



738 

 746 



601 

 561 



646 

 726 



506 

 644 



Mean . . . 



706-5 



570 -5 



742 



581 



686 



575 



Table IX. — Weighings of the Side or Lateral Pressures of Peas. 

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





Peas 6 ft. high in bin. 



Peas 9 ft. high in bin. 



Peas 43 ft, 10 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. 





193 

 185 



116 

 119 



227 

 251 



167 

 161 



242 

 239 



201 

 187 



Mean . . . 



189 



117-5 



239 



164 



240-5 



194 



E 2 



