8 AN INVESTIGATION INTO 
Of the several experiments made two may be selected. The pan and wire 
in each case weighed 3 ounces. 
In the first experiment the marble had the following dimensions : I/ength, 
12 inches; length between supports, n inches; breadth, 1.259 inches; thick- 
ness, 0.284 to 0.298 inch. 
The figures obtained are as follows : 
Inch. 
Load with pan only (taken as zero point) 0.486 
with pan plus 4 ounces 487 
8 ounces 488 
12 ounces 489 
16 ounces 490 
20 ounces 491 
24 ounces 491 
28 ounces 492 
32 ounces 493 
36 ounces 494 
40 ounces 497 
44 ounces 498 
48 ounces 500 
52 ounces 501 
56 ounces 503 
60 ounces 505 
60 ounces (after 2 minutes) 506 
64 ounces 515 
64 ounces (after i^ minutes) 516 
66 ounces .517 
68 ounces 518 
68 ounces (after i \ minutes) 520 
70 ounces '. . . .521 
72 ounces 522 
72 ounces (after i minute) 522 
74 ounces 526 
76 ounces 528 
76 ounces (after i minutes) ' 531 
78 ounces 533 
80 ounces 534 
80 ounces (after 2 minutes, moving fast) 540 
82 ounces 541 
82 ounces (after i minutes ) 543 
72 ounces (weight reduced, large permanent set) 542 
84 ounces .' .547 
86 ounces 549 
86 ounces (after \ minute; broke) 554 
Tol al deflection before breaking 064 
