348  Annual  Report  for  1909  of  the  Consulting  Chemist. 
B.  Fertilisers. 
1.  Dissolved  Bones. 
An  excellent  sample  was  the  following  : — 
Moisture  . ...... 
9-58 
Organic  matter  and  water  of  Combination 
27-10 
Monobasic  phosphate  of  lime 
10-97 
Equal  to  tribasic  phosphate  of  lime 
. (17-18) 
Insoluble  phosphates.  .... 
19-90 
Sulphate  of  lime,  &c.  .... 
31-85 
Insoluble  siliceous  matter  .... 
-60 
- 
100-00 
Containing  nitrogen  . . . . 
2-89 
Equal  to  ammonia  ... 
3-51 
This  cost  61.  4s.  per  ton  delivere'd,  in  Hampshire,  and  must 
be  considered  as  excellent  value. 
2.  Potash  Salts. 
A Member  sent  me  a sample  of  the  above  which  had  been 
invoiced  to  him  as  “ Kainit  (crude  potash  salts)  ” at  56s.  per 
ton,  with  a guarantee  of  its  containing  12  per  cent,  of  potash. 
Its  analysis  was  : — 
Moisture  ...... 
1-26 
'Sulphate  of  potash  .... 
■ . '.  25-76 
Magnesia  and  soda  salts,  &c.  . . 
72-98 
100-60 
' Containing  potash  .... 
13-91 
I found  this  to  be  very  hygroscopic,  and  after  a short 
time’s  exposure  it  became  very  moist  and  would  have  been  most 
diflScult  to  apply  to  the  land.  Fuller  examination  of  it 
showed  it  to  contain  considerable  amounts  of  chloride  and 
sulphate  of  magnesia  as  well  as  common  salt.  Though  unlike 
the  kainit  of  old,  the  description,  “ crude  potash  salts,”  would, 
I presume,  cover  the  sale,  but  purchasers  should  be  on  their 
guard  against  buying  such  salts. 
3.  Rape  Meal  with  Excessive  Sand. 
Rape  meal,  sold  for  manurial  use,  unfortunately  often 
contains  excessive  sand.  One  sample  sent  me  had  : — 
Per  cent. 
Sand . 12-89 
