( 45 i ) 
Y. An Account of fome Experiments touching the feep- 
ing of Wijhes in Water under different Circumflances . 
Bji Mr Fr. Hauskbee, F . 6*. 
T HE FiChes made ufe of in the following Experi- 
ments were Gudgeons 3 Which are a fort of Filh 
very brisk and lively in the Water, and will live a pret- 
ty confiderable time out of it. Three of them I put 
into a Glafs Veffel, to about three Pints of common Wa- 
ter (which Fifhes were to be a ftandard to compare the 
others by.) Into another Glafs, to a like quantity of Wa. 
ter, I put three more of them, which quantity of Water 
juft fill’d this Glafs to the very Brim 3 upon which I 
ferew’d down a Brafs Plate with a Leather between, to 
prevent a Communication with the Water in the Glafs 
and the External Air : And that it might the better re- 
femble a Pond of Water frozen over (on which account 
this Experiment was made) I fuffer’d as little Air as 
poffible to remain on the Surface of the included Water. 
The third Glafs had a like quantity of Water put into it 
as the former 3 which Water, firft by boyling, then by con- 
tinuing it a whole Night in Vacuo on the Air Pump, was 
purg’d of its Air to the greateft nicety : Into this Water 
alfo, I put a like number of Gudgeons as into the other. 
Thus fthe Fifties being all put into their refpe&ive Re- 
ceivers) I apply’d my felf to wait the Event 3 which was , 
as follows. It was about half an Hour after Ten in the 
Morning when l began the Experiments 3 and in- about 
half an Hour from that time, I obferv’d the Fifties in . 
the exhaufted Water, or Water purg’d of its Air, began 
to difcover fome uneafineXs, by a more than ordinary 
Motion , 
