110 MR. W. FATRBAIRN ON THE PROPERTIES OF 
TABLE IIT. Breaking weights and deftections of bars of nickel 
and cast iron, when subjected to a transverse strain. The 
bars were about one inch square, and the distance between 
the supports was two feet three inches. 
Anes Expermgnt Experiment Experiment 
See eee Experiment 
Ix. 
Bar ¥ 1 not Bar F 2 not B Bar H 1 marked|Bar H 2 marked 
5 ar G1 marked|Bar G 2 marked 
marked with | marked with ithiodenocnd waibnondenocehe with two with two 
notches. notches. oes notches, 
Section of bar | Section of bar | Section of bar | Section of bar | Section of bar | Section of bar 
in inches, in inches, in inches, in inches, in inches, in inches, 
1°02 x 1°02. 1°02 x 1°02. 1°02 x 1°02. 1°2x1°2, 1°15 x 1°15. 1°15 x 1°15. 
Weht. |Defiec- | Weght. |Defiec-| Wght. Deflec-| Wght. |Deflec-| Wght. )Deflee-| Wght. |Deflec- 
laid on | tion in {laid on | tion in | laid on | tion in } laid on | tion in| laid on | tion in | laid on | tion in 
in Ibs. |inches. | in lbs. | inches.| in lbs. |inches,| in lbs. | inches.) in lbs. | inches,| in lbs, | inches. 
147 | 0:02 | 147 | 0005} 147 | 0:02 
259 | 0:06 | 259 |0°05 | 259 | 0:06 | 259 | 0:06 | 259 |0:06 | 259 | 0:08 
871 {01 | 371 |O1 | 371 {012 | 371 | 0:08 | 371 {01 
427 |0°12 | 427 |0:115) 427 
483 |014 | 483 | 0°14 | 483 |0°17 | 483 |0-11 | 483 | 0:14 | 483 | 0°14 
539 |0°16 | 539 | 0:18 | 539 539 | 07155) 539 | 0°165 
595 | 0°18 | 595 |0°19 | 595 | 0:23 | 595 |0°17 | 595 |0-17 | 595 | 0-18 
623 | 0°19 
651 |0°2 | 651 |0:21 | 651 | 0:26 | 651 | 0-19 | 651 |0°18 | 651 | 0-2 
679 | 0:21 | 679 | 0:22 
707 | 0:22 | 707 {0:23 | 707 |0:29 | 707 |0'2 | 707 | 0-19 
735 |0°24 | 735 | 0°24 
763 | 0:25 | 763 | 0°255) 763 | 0:32 | 763 |0:215| 763 |0:2 | 763 | 0:23 
791 |0:26 { 791 |0:27 | 791 
805 | 0'265| 805 | 0:28 Broke. 819 | 0°23 | 819 | 0:23 | 819 | 0:25 
819 | 0°27 | 819 | 0°285 875 | 0°25 | 875 |0:24 | 875 | 0:27 
833 | 0°28 | 8838 | 0°29 931 | 0°27 | 981 |0°27 | 931 
847 | 0:29 | 847 | 8295 959 | 0:28 | 959 | 0:28 Broke. 
861 | 0°3 861 |0°3 987 | 0:285| 987 
875 |0°31 | 875 | 0°31 1043 |0°3 Broke. 
903 903 | 0°32 1057 | 0°31 
Broke. 917 | 0°325 1071 | 0:317 
931 | 0°33 1099 | 0'°321 
959 | 0°345 1127 | 0°33 
987 | 0355 1155 | 0°34 
1015 | 0°375 1183 | 0°35 
1029 | 0°38 1121 | 0°36 
Broke. 1289 |0'375 
1267 | 0°385 
1295 
Broke. 
Ultimate Ultimate Ultimate | Ultimate | Ultimate Ultimate 
deflection | deflection | deflection | deflection | deflection | deflection 
0'315” 0°38” 0°331” 0°41” 0°286” 0°29” 
