14  Mr",  hunter  on  the  Heat , See. 
appeared  to  me  to  be  the  very  belt  part  of  any  animal 
body  for  experiments  of  this  kind,  I had  recourfe  to  it ; 
and  as  all  comparative  experiments  fhould  be  as  fimilar 
to  one  another  as  poffible,  excepting  in  thofe  points 
where  the  difference  (if  there  is  any)  makes  the  effential 
part  of  the  experiment,  I procured  a dead  penis. 
exp.  iv.  The  heat  of  the  penis  of  a living  perfon,  an 
inch  and  a half  in  the  urethra,  was  9 2°  exactly.  I 
firft  heated  the  dead  one  to  the  fame  degree,  and  then 
had  the  living  one  immerfed  in  water  at  50°,  at  the  fame 
time  immerfingthe  dead  one  in  the  fame  water;  when, 
introducing  the  thermometer  at  different  times,  I ob- 
ferved  their  comparative  quicknefs  in  cooling  from  920. 
The  dead  one  cooled  fafter ; but  only  by  two  or  three  de- 
grees. The  living  came  down  to  58°,  and  the  dead 
to  550.  After  having  continued  the  thermometer 
there  fome  time  longer,  it  fell  no  lower.  I repeated 
the  fame  experiment  feveral  times,  with  the  fame  fuc- 
cefs ; although  fometimes  there  was  a fmall  difference  in 
the  degrees  of  heat  from  thofe  of  others,  the  heat  of  the 
water  alfo  differing;  but  the  difference  in  the  refult  was 
nearly  in  proportion,  in  all  the  three  different  trial  sphere- 
fore  the  fame  conclufions  are  to  be  drawn  from  them. 
In  thefe  laft  experiments  we  find  very  little  difference 
between  the  cooling  of  a part  of  a dead  body,  and  that 
of  the  living;  but  we  cannot  fuppofe  that  this  can  take 
place 
