30 Mr. J. Morrow. On the Distribution of [Oct. 27, 



Table XL — Cast-iron Beam No. 1. 



Point 



in 

 depth 



of 

 beam. 





Total strains at different loads. 















ij ton. 



1 ton. 



tons. 



2 tons. 



2£ tons. 



1 



2 

 3 

 4 

 5 

 6 

 7 



7-83 x 10- 5 



5-42 



2-01 



o-oo 



-184 

 -4-94 

 -8-15 



15-89 x 10~ 5 

 10-29 



3-62 



005 



- 341 



- 9-33 

 -1602 



24-36 x 10~ 5 

 15-44 

 536 

 0-08 

 - 5-20 

 -14-02 

 -2355 



32-98 x 10- 5 

 20-60 

 720 



- 0-03 



- 7-11 

 -19-04 

 -30-70 



37-78 x i0~ 5 

 2317 

 7-90 



- 0-28 



- 8-53 

 -21-93 

 -3402 



Table XII (Table XI converted to Stresses). 



Point in 

 depth 

 of beam. 



Stresses in kilos, per sq. cm. 



\ ton. 



1 ton. 



H tons. 



! 



1 



-375 



-760 



-1152 



2 



-259 



-492 



- 738 



3 



- 96 



-173 



- 257 



4 







- 2 



3 



5 



90 



165 



252 



6 



239 



452 



679 



7 



395 



775 



1140 



— sign indicates compressive stress. 



Table XIII. — Comparison of Theoretical Distribution of Stress with 

 that obtained from the Lateral Strains in Cast-iron Beam No. 2. 



Distance from 

 centre in cm. 



Stresses corresponding to observed 

 lateral strains. 



Calculated 

 stress, kilos, per 

 sq. cm. 



Lateral strain. 



Stress. 



3 6 



5 -21 x 10- 5 



-270 



-290 



2-4 



3 -57 



-187 



-194 



1 -2 



1-71 



- 90 



- 97 



o-o 



0-18 



- 9 



00 



1 -2 



-1-41 



69 



97 



2-4 



-3-10 



153 



194 



3-6 



-4-48 



221 



290 



