adhesion  of  the  basis-substance  to  them  :  and  appearances  of  many  nu-
cleated cells,  when  fragments  of  the  basis  are  detached  in  which  several
nuclei  are  imbedded.  But  certainly,  in  many  instances,  formed  cells
are  rare  or  absent.
The  nuclei  (Fig.  106)  are  like  those  of  the  typical  cancer-cells  (p.
613)  ;  they   are   oval  or  round-oval,  having  a
long  diameter  of  from  ^^^^  to  ao'bo  °^  ^^  inch,
bright,  pellucid,   perfectly  defined,  largely,  and
often  doubly  nucleolated.
It  is  in  the  structures  thus  formed  that  the
minute  bloodvessels  of  cancer  may  be  best  exam-
ined without  injection ;  for  the  soft  material  in
which  they  ramify  may  be  washed  away  from  them,  so  as  to  leave  them
nearly  alone,  and  fit  for  examination  as  transparent  objects.
(fe.)  Nuclei  (Fig.  106),  which  may  be  considered  as  grown  or  deve-
loped, are  often  mixed,  in  various  proportions,  with  other  cancer-
structures.  Some,  retaining  the  usual  shape,
as  much  larger  than  the  average  ;  others,
rarer  and  more  peculiar,  are  elongated,
narrow,  strip-like,  caudate,  or  pyriform.
