^  J.  Marshall,  "  On  the  Relation  between  the  Weight  of  the  Brain
and  its  parts,  and  the  Stature  and  Mass  of  the  Body  in  Man"
(founded  partly  on  facts  recorded  by  Boyd  in  Philosofhical  Trans.,
1861,  partly  from  Boyd's  original  MSS.,  and  partly  from  fuller  tables
prepared  by  Boyd  at  Marshall's  xeofiSsX),  Journal  of  Anat.  and  Phys.,
July  1892.
120


MAN   AND   WOMAN.
of  the  parts  of  the  brain  to  the  whole  in  decimal
parts  of  an  ounce  to  every  inch  of  height : —


Men.
No.  of
Cases.
Age.
Entire
Encephalon.
Cerebrum.
Cere-
bellum.
Pons  and
Medulla.
103

30-40

.725

.632

.077

.015

Women.
85

30-40

.695       1     .611

.076

.015

This  shows  that  while  men  possess  relatively  to
height  more  cerebrum  than  women,  in  the  distribu-
tion of  the  lower  centres  the  sexes  are  equal.  Reid,
Peacock,  Weisbach,  Meynert,  and  Bischoff  have
agreed  that  there  is  little  sexual  difference  in  regard
to  the  relative  proportions  of  the  cerebellum.  It
must  be  added  that,  in  accordance  with  what  has
been  already  said  in  regard  to  the  brain  generally,
this  sexual  cerebellar  equality  relatively  to  height
really  means  cerebellar  predominance  in  women.
Some  of  the  basal  ganglia  of  the  brain,  according
to  Tigges  and  others,  are  absolutely  as  well  as  rela-
tively larger  in  women.  Putting  together  numerous
facts,  it  seems  clear  that  the  mantle  is  that  part  of
the  brain  which  is  most  liable  to  vary.  The  cere-
bellum, the  various  basal  ganglia,  and  the  spinal
cord  seem  to  be  more  constant  than  the  cerebrum ;
they  do  not  waste  to  the  same  extent  with  age  or
with  insanity.
