BY R. W. H. HAWKEN. 107 
p 
14°25 - 
pz q 
sec f/- -= 
q 2 p 
== 
q 
the error of which is negligible, but it is more conclusive 
and just as easy to use the secant curve, consequently all 
the curves and data have been deduced on the latter basis. 
As shewn in the previous paper this does not cause anything like 
f 
20% difference in results for - 
Pp 
P 
q 
It is apparent that —— is the sum of a Geometrical Progression, 
Pp 
ee 
q 
80 that 
Induced Deflection Pp p 1\? 
= Eine Ice Se aL tee ae 
Eccentricity of Loading q q q 
which is easily visualised. 
