-  30 
sistant  on  palpation;  no  crepitation  percei¬ 
ved.  Surface  of  sections  intensely  red  and 
emitting,  on  compression,  a  dark  red  fluid. 
In  some  places  (base)  the  pieces  of  tissue, 
when  cast  into  water,  sink  to  the  bottom. 
Trachea  and  bronchi  full  of  reddish-  yel¬ 
low  viscous  fluid. 
Left  lung :  also  dislocated  towards  the 
bottom  of  the  pleural  space  into  the  costo¬ 
vertebral  cavity.  About  one  liter  of  citrine 
fluid  in  the  pleural  cavity.  There  are 
no  adhérences.  The  organ  is  small  and  hard, 
though  less  so  than  on  the  right  side.  Crepitati¬ 
on  perceived  on  pressure.  Colour  somewhat 
brown  with  reddened  stains.  A  frothy  red¬ 
dish  fluid  escapes  from  the  surface  of  sec¬ 
tion. 
Peritoneal  cavity:  filled  with  about  4 
liters  of  citrine  fluid.  Peritoneum  thickened, 
showing  dark-brown  spot  at  the  level  of  the 
umbilicus  to  the  left  of  the  median  line.  Epi¬ 
ploon  large,  covering  almost  all  of  the  intes¬ 
tinal  mass. 
Liver:  large,  resistant  and  hard,  but 
easy  to  cut.  Surface  of  the  organ  and  of  the 
section  nutmeglike. 
Spleen :  large.  Consistence  normal.  Sur¬ 
face  of  section  with  the  colour  of  coffee-dregs, 
presenting  a  dense  network  of  white,  resis¬ 
tant  trabeculae. 
Kidneys:  Capsules  easily  detached.  A 
dark  red  fluid  escapes  from  the  intensily  red 
surface  of  section,  even  without  pressure. 
Surface  of  section  shows  almost  no  differen¬ 
ce  of  the  parts. 
Stomach :  empty.  Mucosa  reddened  in 
some  places. 
Intestine:  The  last  portion  full  of  semi¬ 
liquid  fecal  matter.  Mucosa  slightly  redde¬ 
ned  in  some  places. 
Pancreas-,  without  perceptible  alteration 
on  externa!  or  internal  aspect. 
Appendix:  free  and  permeable  for  gases. 
Uterus  :  small,  hard,  resistant.  The  an¬ 
nexa  without  anything  remarkable. 
Bladder:  empty.  Inner  surface  pale  white 
with  some  red  lines. 
Suprarenal  capsules  :  normal,  no  apparent 
alteration. 
Thyreoid  gland  :  not  hypertrophic;  flat¬ 
tened  and  resistant. 
On  lifting  the  sterno-costal  plastron,  a 
normal  amount  of  adipose  tissue  appears. 
Microscopical  iesions. 
We  will  now  describe  the  histological 
sections  of  the  lungs  only,  as  we  have  not 
had  time  enough  to  make  a  complete  study 
of  the  lesions  in  all  the  organs  ;  even  the  exa¬ 
mination  of  the  lung,  here  described,  is  not 
finished. 
Sections  of  the  lung  showed,  on 
examination  with  low  power,  several  featu¬ 
res  worth  recording.  When  the  invasion  is 
strong,  we  observe  enormous  foci,  intensely 
stained  and  scattered  over  the  parenchyma. 
The  structure  of  the  lung  disappears  at  the 
site  of  these  foci.  Even  with  oilimmersion 
(Obj.  1/12,  oc.  4  apochr.)  it  is  impossible  to  see 
anything  but  parasites  and,  mixed  with  them, 
a  large  number  of  red  and  a  few  white 
blood  corpuscles  and,  mostly  between  them, 
a  dense  network  of  fibrin.  Around  these 
large  foci  the  pulmonary  tissue  is  very  much 
altered.  The  fungus  does  not  end  suddenly 
with  the  agglomeration.  From  the  greatest 
thickness  in  one  part  of  the  microscopical 
focus  we  gradually  pass  to  other  ones,  where 
the  parasites  are  less  crowded  and  the  des¬ 
truction  of  the  tissue  less  intense,  until,  fi¬ 
nally,  we  reach  a  zone,  where  a  mixture  of 
tissue  and  fungus  is  visible.  These  foci  of 
parasites  and  destruction  are  almost  always 
full  of  the  pigment  of  the  fungus  itself;  the 
nature  of  this  pigment  we  were  not  yet  able 
to  determine,  either  in  the  tissues  or  in  the 
media  of  artificial  culture.  We  consider  it, 
however,  closely  related  to  the  pigment  of 
certain  sporotricha. 
Another  interesting  object  is  that  of  lung 
sections,  where  the  invasion  is  less  intense. 
We  see  small  foci,  where  the  agglomeration 
of  the  fungus  is  also  smaller  (see  photographs 
and  drawings).  We  observe  numerous  small 
foci,  scattered  over  the  parenchyma.  The 
contrast  is  the  more  striking,  as,  outside  and 
between  these  foci,  there  are  corresponding 
