2,00  Dr.  white’s  Experiments 
fbmenefs  of  fmall  rooms,  clofe  beds,  See.  efpecially  in 
difeafes. 
exp.  ix.  Some  air  which  I had  refpired  as  long  as 
could  be  without  manifeft  inconvenience,  was  by  it  re- 
duced from  62°  to  40°.  This  illuftrates  the  preceding 
experiment. 
exp.  x.  A fmall  piece  of  frefli  veal  was  put  into  a 
phial  containing  eight  ounces  of  common  air,  and  fuf- 
fered  to  remain  therein  twenty-four  hours : the  flefh  was 
then  perfectly  fweet,  but  the  air  was  much  injured,  be- 
ing diminifhed  from  64°  to  55.  Being  left  together 
twenty-four  hours  longer,  the  air  was  reduced  to  1 o°, 
or  rendered  nearly  mephitic ; yet  the  flefh  was  not  putrid, 
only  fmelling  rather  faint  and  mufty. 
It  is  evident  from  hence,  that  fomething  had  efcaped 
from  the  flefh,  whilft  yet  void  of  any  putrid  fmell,  fo  as  to 
render  the  air  very  noxious : I fuppofe  this  effluvia  to  be 
pure  phlogifton.  Hence  it  feems,  that  this  principle  is 
capable  of  riling,  per  fe,  uncombined  with  the  faline 
part  of  animal  bodies,  the  union  of  which  is  fuppofed  to 
give  the  putrid  fmell.  It  proves  Sir  john  Pringle’s  fup- 
pofition,  that  phlogifton,  when  Angle,  is  imperceptible 
to  the  fmell;  but  I think  it  alfo  fhews  it  to  be  peftilen- 
tial.  In  our  experiments  it  was  devoid  of  fmell,  confe- 
quently  contained  no  mixture  of  volatilized  acid;  yet  it 
had 
