264 On the Transverse Strain, 
27. These few are selected from among a 
considerably greater number of experiments ; 
but as the rest are tolerably well in accord 
with these, it may not be worth while to 
give any more. ‘The natural inference from 
them is this: That so long as the forces are 
moderate, and are applied in the direction of 
the fibres, the compressions will be nearly as 
the forces: but when the beam becomes bent, 
the fibres being then crushed together as well 
incuryated, offer a feebler resistance to the 
force. 
To-find then the ultimate value of the index 
w, we shall follow the reasoning adopted un- 
der the article extension ; and since the forces 
are supposed to be as (compression)”, and 
the early value of w is found to be unity, we 
shall have : 
In the first experiment (taking any early 
weight, as 30, with its compression 8, the 
deflections being considered integers, as in 
art. 24) 
8x 180 
30:8:: 180: (51)¥7 = 30 
Log. 48 1.6812412 
= 48, .°.. wx Log. dl 
== Log. 48, and w= Log. 51 ao 1.7075702 984. 
In the second experiment, 
P. ww 8X 195 , .__ Log. 52 
$028:: 195; (63)°=— 30 = 02. .°,w= Tog. 68 
1.7160033 
17993405 
