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PROCEEDINGS OF THE AMERICAN ACADEMY 



TABLE IV. 

 Deflections of Piece No. 6, Series No. 2, under a continued Load. 



Piece No. 7 of this series was computed to hold 756 lbs. before 

 breaking, and 504 lbs., or § of the breaking weight, was suspended 

 from the beam. After supporting this load 134 hours the beam broke. 



TABLE V. 



Deflections of Piece No. 7, Series No. 2, under 504 lbs. or 

 Calculated Breaking Weight. 



The deflections of the beam measured at frequent intervals are 

 given in Table V. 



Piece No. 8 of this series carried | of its breaking weight 499 

 hours, with an increase in deflection of 7.64 millimetres (0.3 in.). 



