346  Annual  Report  for  1909  of  the  Consulting  Chemist. 
and  compensation  values  of  feeding  stuffs  (Journal  R.A.S.E., 
1902,  Yol.  63,  pp.  110-1),  Mr.  A.  D.  Hall  and  myself  have 
thought  it  well  to  set  out  our  opinion  that  Soya  bean  cake 
should  be  classed  with  decorticated  cotton  cake,  to  which  it  is 
equal,  or  very  nearly  so,  in  manurial  value.  Further  analyses 
show  that  Soya  bean  cake  contains,  on  the  average,  1'3  per 
cent,  of  phosphoric  acid  and  2’2  per  cent,  of  potash. 
5.  Compound  Cakes  and  Meals. 
As  usual,  these  have  been  of  varied  character,  some  good, 
some  bad.  Among  the  latter  was  a meal  sold  as  “ special 
meal,”  and  costing  &l.  10s.  per  ton. 
Moisture  ........  12'23 
Oil 3-39 
'Albuminous  compounds  . . . . . 13' 25 
Starch,  soluble  carbohydrates,  &c.  . . . 63  33 
Woody  fibre  .......  4’86 
Mineral  matter  (ash)  .....  2'94 
100-00 
’ Containing  nitrogen  . . . . . . 2-12 
The  analysis  shows  nothing  “ special  ” about  this,  and  the 
microscopic  examination  revealed  the  presence  of  polygonum, 
corn-cockle,  niger,  and  other  weed  seeds  in  some  quantity. 
The  other  principal  constituents  were  wheat,  oats,  and  maize, 
and  any  intelligent  farmer  could  make  up  a better  mixture  for 
himself,  and  more  cheaply. 
6.  Dried  Distillers'  Grains  with  Excessive  Sand. 
As  a rule,  dried  distillers’  grains  are  found  to  be  clean  and 
good,  but  one  sample  was  sent  me  which  contained  : — 
Per  cent. 
Mineral  matter  (ash)  .,  . . . . 11-18 
including  sand  ......  9-08 
The  price  was  5Z.  10s.  per  ton. 
7.  Castor  Oil  Bean  in  Feeding  Materials. 
The  presence  of  castor  oil  bean  in  feeding  materials  has 
constantly  to  be  guarded  against,  and,  when  found,  is,  I am  more 
than  ever  convinced  (in  spite  of  the  assertions  made  as  to  the 
exaggerated  importance  attached  to  it),  a cause  of  danger  and 
not  improbable  loss.  In  one  instance  referred  to  me  I found 
that  in  a delivery  of  Soya  bean  meal  came,  by  accident,  one  bag 
of  castor-bean  meal  (intended  for  manurial  use).  It  was  given, 
