the By-fl:anders,t!iat ttic gr^at refrigeratidh; ttiat itiuft be this #ay pro- 
cured to the imprifoned Air,did fcnQbly revive or refrefh the drooping 
AnimaljWho manifcftly continued to pant exceedingly as before, and» 
as fome affirmed,raore ^ So that this remedy proving InefFedual, the vi- 
ol was removed out of the water,and the Bird foraetimc after did, as I 
foretold,make many ftrains to Vomit (though flie brought up little) 
followed by Evacuations downward,bef6rc Ihe quite expired, which Ihe 
did within aminutc or twd of a juU Jioufy after the beginning of her 
imprifbnmcnt. o jm ^;.^ 
If I had been able ( Whicfi t was not) to procure more Birds, I 
would willingly haVe prpftcuted this Eicpcridiertt by fe vera! other not 
unhopeful! tryais j which for want of Subjects I was fain to leave only 
defigned. 
:^ht XVI. Title. 
Of the HjeoftheAir to elevate the Sttmsdf tbil^sl 
IntheDigreffiofiaboutRefpirationannexttothe4ithof our Thyfi- 
co-mechamcal Experiments formerly publiihed, it ispropofed as one of 
the confiderable ufes of the Air in Refpiration, that, being drawn into 
theLungSjit fcryes to carry off with it, when 'tis breathed out again, 
the Recreraentitious fteams that are feparated frohl the rtiafs of Blood 
in its Paffage through the Ltings : from which fuliginous Excrements if 
the Blood were not continually freed by the help of the Air,after nature 
had been accuftomed to that way of difcharging them, their ftay in the 
body might have very great and deftrudive Operations on it» 
For thellluftration of thisufe pf ttieAir,^! (hall now fubjQyne the 
following Experiment. , ^ ^''/^. . 
We made by diftillation a blood-red Liquor, which chiefly confined 
of fuch Saline and Spirituous particles, as may be obtained from the 
Mafs of Blood in humane Bodies This Liquor is of fuch a Nature,that 
if a Glafs Viol, about half filled with it^be kept weirftop*d, the red li- 
quor will reft as quietly as any ordinary one, without fending up any 
fmoak^r vifible Exhalation But if the Viol be unftopped fo, that the 
external Air-^e permitted to come in, and touch the Surface of the Li- 
quor ,within a qi^arter of a minute or lefs, there will, upon this Contad, 
be elevated a copious white fmoak,which will not only fill the upper part 
of the Glafs, but plentifully pafs out into the open Air, till the Viol be 
again flopped. / 
My purpofe in this Traft to forbeare fidings in Controverfies, keeps 
mt from taking notice of the fpeculations fuggefted by fome of tlic Phce- 
nomena of this Liquor ^ which yet I thought I might lawfully mention, 
as far as I have done it, becaufe it but adventures upon giving one of 
the Ufes rather of the Air^then immediately of Refpiration it felf ^ and 
is brought but to illuftratc what I have not found denied by any, though 
confidered by very few namely, the office of the Air to carry off in 
Expiration the fuliginous fteams of the Lungs. For,in our Experiment 
we manifeftly fee, that the very Contaft of the Air may give the Coy- 
puf&les 
