( 41 * ) 1 
Motion in their Mouths and Gills, or Refpiration, if l 
-may call ic fo, differing from the Fifties in the other 
Glaffes; the included Fifties at the fame time difcovering 
no alteration * only l took notice that they would now 
and then afcend to the top of the Water, but fuddenly 
fwim down again : And in this State they continued for 
fome conftderable time, without any fenfible Alteration. 
About 5 Hours after the laft Obfervation, the Fifties in 
the exhaufted Water became not fo aftive (upon a Mo- 
rion given the Glafs that contain’d them) as before : 
And thofe Gudgeons included without any Communi- 
cation with the outward Air, now began confiderably 
to abate of their Vivacy * yet ftill continued at times 
their Motions upward and down again. At Seven in 
the Evening, the included Fifties lay all at the bottom 
of the Giafs, with their Bellies upwards* nor upon 
fhaking the Glafs, could 1 put them in Motion, or caule 
them to ftir their Fins or Tail * only I could obferve a 
Motion in their Mouths, which fhew’d me they were 
not perfectly dead. In this State they lay for fome time ; 
But confidering the Experiment would not be compleat, 
if 1 did not attempt their Recovery by taking off the 
Brafs Cover, being very fure they muft have dy’d in 
Tome fmall time under the Circumftances they were then 
in, accordingly I took off the Cover, and gave the 
Surface of the Warer a free and open Communication 
with the External Air. At about Ten at Night, I ob- 
ferv’d them again* at which time their Recovery was fo 
evident, that upon a little difturbing the Glafs that 
contain’d them, they were actually in Motion again : 
And at this time alfo, the Fifties in the Water purg’d of 
Air, began to appear more brisk and lively than at the 
laft Obfervation. Here I cannot but take notice, that 
notwithftanding the Water was purg’d of its Air to a 
very great degree, yet the Fifties put into it did not fo 
much as once afcend in it* but continued always at the 
bottom 
