Trans. ACAD. Scr. or St. Louis, Vou. XXIIf. PLATE XLI. 
ao oe 
om TT ies i bit grr! Dee i? ee oe 
{i ss 
aan CI i Ee i Se 
SU00Gy oA OL oe 
ome mu a 
- ae 
gage § 
oy ane Bier “Ge 
EL ee aa Be 
* Pee 
ses | 
| 
Lt 
MAGNETIC EFFECT OF SOUND WAVES. 
Perri 
I a 
i 
ek 
Ranennne 
SO Me! 
Kas HH 
SS Ges te we WM RATE BE 
ee Sa | 
Li 
i 
oH 
Bae se 
PELE COREE 
coe PCE EEL 
ss aE en Be 
