(2030) 
Air, we let her down again rntotbc Tub, which in the mean time had 
been fillM with frefh water, leaft the other , which had been troubled 
with the , fleams and foulnefs of the Ducks Body , might cither haften 
her death by its being infedcd with them , or hinder our difccrning 
what /liould happen, by its being opacatcd by them . 
^ The Bird. being thjus under water did, after a while, begin, and from 
time to time continue, to emit divers Bubbles at her Beak. There alfo 
came out at her Noftrils 'divers real Bubbles from time to time ^ and 
when the Animal had continued about two minutes or better under wa- 
ter, flie began to ftruggl'e very much,and to endevour either to emerge 
or chang Poftures • the latter of which Hie had liberty to do , but not 
the former. After four mi?nute^, the Bubbles came much more fparing- 
lyfrom her: then ^Ifdfh^e began ro gape from time to time, (which wc 
had not obferv M her to do before, )but without emitting Bubbles-, and 
fo /he continued gaping till near the end of the fixth minute , at which 
time all her motions, fome of which were judgM convullive , and o- 
thers that had been excited by our r0u7.ing.her \^irh a forceps , appeared 
to ceafe and her headio hang carclefly-down, as if ihe were quite dead, 
Notwithftandirlg which, we thought fit for greater fecurity to conti- 
nue her under water a full minute longer, and then finding no figns of 
life, we took her out. and being hung by the heels , and gently prefs'd 
in convenient placcs,fhe was made to void a pretty qtiantity of water , 
of which whether any had been received into the Lungs themfelves , we 
had not time and opportunity to examine . But all the means, that were 
to recover the Bird to life, proving Ineffedual, we concluded, (he had 
been dead a full minute "before we removed her out of the water : Sb 
that, to fum up the Event of our Experiment , even this Water-Bird 
was not able to live in Cold water, without taking in fre/h Air, above 
fix minutes ^ which is but it of an hour. 
Experiment the %th. 
The Jytichjiyig mentioned in the /. Title and fecond Experiment , having 
a competent weight tyed to her legs, was let down into a Tub of Wa- 
ter which reached not above an inch or two higher than her Beak : du- 
ring the mod part of her continuance, there came out flore of Bubbles 
at her Nollrils, but there feemM to come out more and greater , from 
a certain place in her head almoft equidiftant from her eyes, but forae- 
what lefs remote from her Neck than they, Whilft flie was kept in this 
condition, (he feem*d frequently to endeavour to dive lower under 
water, and after much flrugling and frequent gaping , (he had divers 
convulfive motions, and then let her Head fall down backward, with her 
Throat upwards* To which movelefs pofturc fhe was reducM at the 
end of the third minute, if not a little fooner but a while after there 
appeared a manifeft but tremulous motion in the two parts of her Bill , 
which continued for fome time, but aiforded no Circumftanccs,where. 
