Dairy  Cattle  and  the  Butter  Test. 
41 
' • A little  more  attention  paid  to  the  improvement  of  the 
quality  of  the  milk  of  all  the  heavier  breeds  in  the  milk-yield 
classes  should  result  in  fewer  disqualifications  on  the  score  of 
“ deficiency  in  fat,”  as  the  butter-test  trials  have  shown  pretty 
conclusively  that  “ richness  of  milk  is  transmissible.” 
This  is  exemplified  in  the  history  of  the  Jersey  cow.  The 
old  Island  breeders  paid  special  attention  to  the  use  of  butter 
bulls,  that  is,  animals  descended  from  cows  well  known  for  the 
Fig.  4.— South  Devon.  Milk  x 500  diam. 
richness  of  their  milk  and  cream.  At  the  same  time,  the 
shape  and  capacity  of  the  udder  was  made  a sine  qua  non, 
and  consequently  these  characteristics  became  “fixed.”  As 
an  illustration  I Avould  refer  to  the  .celebrated  Island  bulls. 
Golden  Lad,  his  son,  Boyle,  and  grandson.  Golden  Fern's 
Lad  by  Boyle.  Those  of  my  readers  who  have  seen  and 
remember  these  animals  can  bear  testimony  to  the  remarkable 
