eight  days  in  the  first  case  and  five  days  in  the  second.  The  kidneys 
showed  no  obvious  congestion,  though  somewhat  dark  m  aspect 
They  were  of  a  brownish  colour.  The  capsule  stripped  readily  ij 
Case  ya,  and  with  slight  erosions  in  Case  ii.  A  most  striking  feature 
of  the  kidneys  was  their  marked  enlargement,  measuring  in  Case  ya 
4' a' vf'rf ^  *'  >  %r  •  • 
V.*'  J', 
I - 1 - 1  , 
OjU-  ISO  jj.  300^  1^ 
Fig.  33.  Section  of  cortex  of  kidney  during  suppression  of  urine,  eight  r 
days  after  haemoglobinuria  had  ceased.  Blackwater  Fever,  Case  ya.  f 
The  renal  tubules  are  considerably  distended  with  fluid.  The  lumen 
of  thirteen  of  the  tubles  is  partly  occupied  by  darkly  staining  coarse 
granules  measuring  about  5/1  in  diameter,  some  of  which  are  discrete, 
while  others  have  coalesced  into  irregular  masses.  The  epithelium  of  t 
the  tubules  is  flattened,  but  is  not  degenerated.  The  Malpighian  I 
capsules  are  dilated,  but  otherwise  unaltered.  The  interstitial  tissue, 
which  seems  to  be  also  distended  with  fluid,  exhibits  no  cell 
infiltration.  No  malarial  pigment  is  recognisable.  Hardened  in 
alcohol.  Stained  with  iron  alum  haematoxylin.  x  120. 
sin.  in  length  by  sin.  in  breadth  and  i^in.  in  thickness;  in  Case  iij 
the  enlargement  was  very  nearly  as  great.  The  cortex  could  not| 
be  sharply  differentiated  from  the  medulla,  so  that  it  was  not  possible !■ 
to  say  how  far  the  degree  of  swelling  was  greater  in  the  former  as|- 
