210  SMITHSONIAN    MISCELLANEOUS    COLLECTIONS  VOL.    96 
the  socket.  The  most  important  of  these  is  the  manner  in  which  the 
socket  itself  is  formed.  The  open  sockets  which  we  have  heretofore 
considered  have  been  straight-sided  and  perfectly  rectangular  in  shape. 
Since  they  were  as  wide  across  the  top  as  along  the  floor,  the  f oreshaft 
rested  lightly  in  place  and  was  only  prevented  from  slipping  out  by 
means  of  a  lashing  which  passed  through  a  pair  of  slots  and  across 
the  open  socket.  In  the  present  group,  the  two  lashing  slots  or  a 
single  slot  with  an  opposite  groove  are  retained  in  a  number  of  cases, 
but  in  addition  to  this  method  of  lashing,  the  socket  is  cut  out  in  such 
a  manner  that  it  alone  will  at  least  partially  hold  the  foreshaft  in  place. 
This  was  accomplished  by  making  the  socket  walls  slant  inward ; 
with  the  floor  of  the  socket  now  wider  than  the  opening  along  the 
top,  the  foreshaft  remains  in  place  without  the  aid  of  a  lashing,  just 
as  in  the  case  of  a  completely  enclosed  socket.  The  wedgelike  appear- 
ance of  such  sockets  is  further  increased  by  having  them  taper  from  the 
base  upward,  so  that  in  an  extreme  form,  like  plate  71,  figure  8,  the 
width  of  the  socket  at  the  upper  end  is  only  half  that  of  the  lower  end. 
The  symmetrical  lateral  spur  of  type  III  (a)  x  is  here  replaced 
by  one  which  is  made  asymmetrical  by  having  the  lower  end  on  the 
socket  side  beveled  off  obliquely.  A  few,  like  plate  71,  figure  5,  have 
retained  the  older  form  of  spur,  uniformly  beveled  from  both  sides. 
The  line  holes  are  more  variable  both  as  to  size  and  shape  than  any 
previously  considered.  Most  of  them  are  rounded  and  relatively  large, 
others  are  triangular,  either  large  or  small,  and  still  others  that  were 
originally  round  have  by  secondary  cutting  taken  on  a  squarish  shape. 
Along  with  these  specific  changes  of  the  spur  and  socket  is  a  change 
in  contour.  The  majority  of  the  type  III  (b)  x  heads  differ  from  those 
of  type  III  (a)  x  in  their  somewhat  smaller  size  and  straighter  lines; 
they  have  lost  completely  the  graceful  shape  that  in  the  past  was  always 
associated  with  the  type  III  head.  As  to  material,  19  of  the  type  III 
(b)  x  heads  from  Seklowaghyaget  are  of  ivory;  2,  including  plate  71, 
figure  7,  are  of  bone ;  all  are  undecorated. 
It  should  be  mentioned  here  that  one  harpoon  head  of  type  III  (b) 
X  was  found  at  levoghiyoq,  cut  9,  depth  31  inches.  However,  there 
is  a  strong  probability  that  this  specimen  is  intrusive,  for  it  was  the 
only  one  of  the  large  number  of  harpoon  heads  from  that  site  which 
showed  any  inclination  to  the  peculiar  form  of  socket  characteristic 
of  this  type. 
Open  socket  type  III  (b)  y. — Same  as  above  but  with  the  blade 
slit  at  right  angles  to  the  line  hole.    (PI.  71,  fig.  10.) 
The  specimen  shown  in  plate  71,  figure  10,  from  cut  2,  18  inches 
deep,  was  the  only  example  of  this  type  found  at  Seklowaghyaget. 
