[ 4§9 ] 
cc. The anterior branch of the third trunk arifing 
behind the fecond gill. 
dd. The pofterior branch of the third trunk arifing 
behidd the third gill. 
Fig. III. A perpendicular fedlion of the Torpedo a 
little below its infpiratory openings. 
A a. The upper furface of the fi(h. 
SB. The mufcles of the back as divided by the fee* 
tion. 
c. The Medulla Spinalis. 
d. The Oefophagus. 
e. The left gill fplit, to expofe the courfe of a 
trunk of the nerve through it. 
F. The breathing furface of the right gill. 
gg. The fins. 
hh. The perpendicular columns which compofe the 
eledtric organ, with a reprefentation of their hori- 
zontal partitions. 
I. One of the trunks of the nerves, with its ramifi- 
cations* 
Vol, LXIXL 
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