246 On the Transverse Strain, 
Y. And these values of a, X, and Y, sub- 
stituted in the foregoing general expression 
(art. 16,) give the strength 
“A Bb (ight! art2)i 4 f% (ia? aH) 2x 
m* h? L.C 
St Lea yrs 
b v . 
St (oy ats 
dpdine 
= (finding the fluents and 
ha 
ae ce veh 3) + 
we mn hye 5 yors 
v ni: 2 w+3 ; 
(Ge #8), og eb Oe all 
v+l ~ v+2 hy? +! cna & 
eel 7 ee 
shh? 
when x = mh and y =nh, pee aa 
n n” 
(ze ja me 25 Bhs) w42 T w43 
aga ops) t pi Tage) Xe 
w+l * w+2 
a general expression for the strength of the 
frustum ABCD. 
18. When mhk=h, or m=1, we have 
the strength = Le 
n n* 
een eee 
Z i 4 s w+? ea 
(cts a) + aa) x 
mr Tae oa 
which is that of the whole triangle. But in 
this case the situation of the neutral line ab, 
