The  examples  of  inflammatory  lymph  which  I  have  quoted  are  such
as  may  be  considered  typical  of  the  two  varieties  :  the  first,  in  which
spontaneously  coagulating,  it  presents  fibrine,  either  alone  or  mingled
with  very  few  corpuscles  ;  and  the  second,  in  which  corpuscles  are
found  alone,  or  with  only  a  few  flakes  of  fibrine.     But,  in  a  large  num-

lias  been  worked  out  by  so  many  observers,  and  with  so  much  fulneSs  of  detail,  that
it  probably  expresses  a  large  part,  if  not  the  whole,  of  the  truth  as  to  their  mode  of
origin.  Commencing  with  the  observations  of  John  Goodsir,  on  tlie  morbid  changes
which  take  place  in  Peyer's  glands,  and  on  the  process  of  ulceration  in  articular
cartilage  (see  the  reprints  in  his  Collected  Anatomical  Memoirs,  Edinburgh,  1868),  the
subject  has  been  still  further  illustrated  by  those  of  Dr.  Eedfern  on  the  morbid  changes
in  articular  cartilage,  and  by  the  elaborate  investigations  of  Virchow,  more  especially
as  regards  the  part  which  the  connective  tissue  takes  in  the  production  of  these  cor-
puscles (see  his  published  lectures  on  Cellular  Pathology,  and  several  papers  by  himself
in  the  earlier  volumes  of  his  Archiv).  Numerous  papers  also  may  be  found  in  the
same  Arckiv  by  Buhl,  Bottcher,  Foreter,  C.  0.  Weber,  Eindfleiseh,  Burckhardt,
Sczelkow,  Neumann,  Hjelt,  and  Cohnheim,  in  which  original  observations  are  made.
The  writings  of  Strube  and  His  on  inflammation  of  the  cornea,  the  paper  by  C.  0.
