II5 
L'ju.  40.  Section  of  medulla  of  kidney  during  suppression  ot  urine,  live 
days  after  haemoglobinuria  had  ceased.  Blackvvater  Fever,  Case  ii. 
Tran.sver.se  section  of  a  collecting  tubule.  The  lumen  of  the  tubule 
is  incompletely  filled  with  epithelial  cells  and  darkly  stained  granular 
material,  the  individual  granules,  which  are  from  to  5/1  in  diameter, 
having  coalesced  so  as  to  form  irregular  groups.  The  nuclei  of  two 
ot  the  free  epithelial  cells,  contained  in  the  lumen  of  the  tubule 
present  a  shrunken  aspect  and  do  not  exhibit  a  well  formed  chromatin 
network.  The  epithelial  cells  lining  the  tubule  do  not  exhibit  any 
marked  change,  and  the  interstitial  tissue  is  free  from  any  indication 
of  cell  infiltration.  Hardened  in  alcohol.  .Stained  with  iron 
alum  haematoxylin  x  1300. 
