16 



ROYAL SOCIETY OF CANADA 

 TABLE IV. 



Loads 

 Pounds 



Time 

 Seconds 







10 



20 



30 



40 



50 



60 



70 



80 



90 



100 



110 



120 



150 



180 



240 



300 



360 



Galvanometer Readings. 



100-2000 lbs 

 in lOsecs. 



corrct 

 obsv'- 

 /<:= 0032 



obsv<i 

 correct. 

 A; =0031 





 1.02 



2-2 2 5 



2 33 



1-50 

 110 

 0-90 

 0-82 



100-4000 lbs 

 in 20 sees 







1-20 1 



2 90 3 



5-20 5 



5-50 5 



5 ■ 35 3 



100-6000 lbs 

 in 30 sees 



obsvd- 

 correct. 

 A:= 00295 



4-75 — 



4-30 — 



3-60 — 



300 — 



2-50 — 



2 10 - 







1-98 

 412 



50 6-80 



10 8 60 



40 903 



8-32 9.05 



100 8000 lbs. 

 in 80 seconds 



obsv^- 



correct. 

 A; =0031 



•90 

 •25 

 .75 

 ■&0 

 •05 





 0-46 

 155 

 3-20 

 4-76 

 6 35 

 8-20 

 9 85 



11 20 

 12-20 



12 40 



12 04 



100-10,000 lbs. 

 in 105 sees. 



100 lbs. to 



fracture 



(11,800 lbs.) 



obsv^- pbsvd. 



correct. correct. 



A;= 00291 A:=.003 



8^80 



•10 

 •40 

 •70 

 •40 

 •40 

 •20 

 •10 



40 

 •90 



65 







0-61 

 206 

 3 55 3 

 510; 4 

 6^78 5 

 8-18 

 975 



11-30 



12 95 



14 61 



1561 



15-81 



specimen 



broke 118 



seconds from 



commence- 

 ment of test. 



Resistance of pile = 555 ohms. 

 Resistance of galvanometer = 52 ohms. 



One division = OS". 



TABLE V 



Resistance of leads = 1'81 ohms. 

 Scale distance = 9\.10|" 



