JJ ocrwvrL'. 
mil. Trams. 1882. Plate 19. 
Fig. 1 
JL) vcxtyr am. sh-owvnqf ca-rves of ccj,wo(Ja stress - difference 
dive to the -weixjhb of 2^ harmonic inecpuxxJitie-s or 
to tide- - qe-neractinq force . 
jF i q . 3 . 
cv J 
]fhM.<qroL.m. showvwq the ■profile of the- even- hrcmvonrcs 
neocr the, E q-ixocbor. RolcLLujS of sphere 18 iruLhes. 
^3- 2 - 
Rnaxtyram, s howinq the differen-ce, between- the principal; stresses dn-e to hxerm.on.Lc 
wlo un-tdins auvxdu Vodlie-s on- oc- horizontal; -phoun-e.. 
West JSfe.w7ri.ocn. 8c C? li.th-. 
