Ewing 
Ph.iL. Trwis. 1886 .Plate 21. 
Fi 9 .l (§6.) 
’I LOS. 
Fig.S.($12.) 
? b 
Fig.9.ff«.; 
Effects of vibration, A wiiKoi-Li vibrcUuin/. 
B with, YibyeUtoYiy. 
Scun&wlre , sajrrvz, cycle, ofloouls 
F 19 .I 2 ^ 22 .j 
SUruiliashcous oiucngee of ti'crme electric, cficaluy 
