PLATE LIII. 
This, in the Torpedo, may perhaps be effected by the successive 
discharge of his numerous cylinders, in the nature of a running 
fire of musquetry ; the strong single shock may be his general 
v olley. In the continued effect, as well as in the instantaneous, 
fits eyes, which are usually prominent, are withdrawn into their 
sockets.” 
“ A large Torpedo, very liberal of his shocks, being held with 
both hands, by his electric organs above and below, was briskly 
plunged into water, to the depth of a foot, and instantly raised an 
equal height in air ; and was thus continually plunged and raised, as 
rprick as possible, for the space of a minute. On the instant his 
lower surface touched the water in his descent, he always gave a 
violent shock, and another still more violent in his ascent ; both 
which shocks, but particularly the last, were accompanied with a 
Writhing in his body, as if meant to force an escape. Besides these 
two shocks from the surface of the water, which may yet be consi- 
dered as delivered in the air, he constantly gave at least two when 
Wholly in the air, and as constantly one, and sometimes two, when 
Wholly in the water. The shocks in water appeared, as far as sen- 
sation could decide, not to have near a fourth part of the force of 
those which took place at the surface of the water, nor much more 
than a fourth of those entirely in air.” 
“ The shocks received in a certain time were not on this occasion 
counted by a watch, as they had been on a former, when fifty were 
delivered in a minute and half, by the animal in an insulated and 
nnagitated state : but from the quickness with which the immersions 
Were made, it may be presumed there were full twenty of these in a 
minute ; from whence the number of shocks in that time must have 
ai nounted to above 'an hundred. This experiment, therefore, while 
