886 
ME. HODG-KEs^SON’S EXPEEDIEXTAi EESEAECHES 
Table V. (continued). 
1 No. of Ex- 
j perimeiit. 
Description of Pillar, 
6 feet 3 inches long, 
and as above. 
Weights 
laid on. 
Decrement. 
Deflection. 
Breaking weight, or that 
with which the pillar sank. 
Remarks. 
6. 
Second London Mixture. 
About two-thirds of old 
metal, and one-third of 
best Scotch pig-iron. 
From Exp, 22, Table III. 
Diameter 2‘496 inches. 
lbs. 
33881 
43289 
52697 
62105 
71513 
80921 
90329 
99737 
109145 
116672 
inch. 
•060 
-077 
-094 
-110 
•126 
•143 
•160 
•177 
•197 
•213* 
inch. 
1 1 0672 lbs. = 52-09 tons. 
Broke in the middle and at the ends. 
See Plate XXXIII. 
7. 
1 
Second London Mixture. 
Mean diameter from eight 
measurements I’SSOin. 
7358 
9710 
12062 
14414 
16766 
19118 
21470 
23822 
26174 
26527 
•014 
•024 
•032 
•040 
•048 
•057 
•066 
•075 
-091 
•093* 
26527 lbs. 
For the form of fracture in this and the 
two following pillars, see Plate as above. 
8. 
Second London Mixture. 
From Exp. 23, Table III. 
Diameter 1-530 inch. 
7358 
9710 
12062 
14414 
16766 
19118 
21470 
23822 
24763 
•027 
■036 
•044 
•051 
•059 
•068 
•077 
■090 
•095* 
•06 
•12 
•28 
•38 
24763 lbs. 
. 
9. 
Second London Mixture. 
From Exp. 24, Table III. 
Diameter 1-541 inch. 
7358 
9710 
12062 
14414 
16766 
19118 
21470 
23822 
25939 
•027 
•034 
•043 
•051 
•060 
■068 
•077 
•088 
•098* 
•07 
•19 
25939 lbs. 
! 
1 
Additions to the preceding experiments in Table V., the pillars being cut from the 
1-| inch bars used in Experiments 7, 8 and 9, their lengths being as below, and their 
ends turned flat. 
No. of Exp. 
Description of Pillar. 
Breaking weight. 
Remarks. 
10. 
Length 3 feet. 
Diameter 1 '628 inch. 
From Experiment 7. 
lbs. 
67384 
i 
11 . 
Length 3 feet. 
Diameter 1-544 inch. 
From Experiment 8. 
70556 
12. 
Length 3 feet. 
Diameter 1 527 inch. 
From Experiment 9. 
57856 
13. 
Length 2 feet 6 inches. 
Diameter 1-531 inch. 
From Experiment 8. 
85138 
These pillars broke in the middle, and 
broke off at each end. 
For form of fracture see figures in Plate 
XXXIII. 
i 
14. 
Length 2 feet 6 inches. 
Diameter 1-530 inch. 
From Experiment 9. 
72907 
15. 
Length 2 feet 6 inches. 
Diameter 1-515 inch. 
From Experiment 7. 
70556 
