either  cortex  or  medulla,  but  haemorrhage  beneath  the  capsule  of 
one  kidney,  already  referred  to,  was  observed  in  Case  /a. 
The  position  and  aspects  of  the  renal  casts,  and  the  distension 
of  the  renal  tubules  and  Malpighian  capsules  are  represented 
diagrammatically  in  Fig.  62A. 
I  I  I 
OjX  no  fX  300 
I'lG.  42.  Transverse  section  of  medulla  of  kidney,  seven  days  after  haenio- 
globinuria  had  ceased.  Blackwater  Fever,  Case  i6.  Many  of  the 
collecting  tubules  are  in  part  occupied  by  darkly  staining  material, 
usually  dense  in  aspect,  but  in  one  of  the  tubules  coarse  granules  are 
seen.  In  some  of  these  tubules  epithelial  cells  and  debris  can  also  be 
recognised.  Some  of  the  collecting  tubules  are  devoid  of  epithelial 
lining  and  contain  a  very  small  amount  of  floceulent  material.  Four 
of  the  smaller  tubules  show  h^^aline  casts,  indicated  by  parallel 
shading.  A  few  blood  cells  are  seen  containing  red  cells  darkly 
stained.  Ihe  interstitial  tissue  shows  no  increase  in  amount  nor  is 
any  cell  infiltration  observable.  No  malarial  pigment  can  be  seen. 
Hardened  in  alcohol.  Stained  with  iron  alum  haematoxvhn.  x  t6o. 
