Annual  Report  for  1910  of  the  Consulting  Chemist.  305 
7.  Mangolds. 
In  four  different  varieties  sent  me  for  determination  of  the 
amount  of  sugar,  the  following  results  were  obtained  : — 
Percentage  of — 
A 
B 
C 
D 
Water 
88-57 
87-09 
88-97 
87-93 
Solid  matter 
11-43 
12-91 
1103 
1207 
Crude  fibre 
2-63 
312 
2-72 
2-87 
Sugar  in  whole  roots. 
6-84 
9-19 
7-26 
8-36 
B.  Fertilisers. 
1.  Basic  Slag. 
Though  generally  found  to  be  up  to  quality,  there  have 
been  occasions  in  which  basic  slag  has  been  shown  to  be 
distinctly  deficient.  Such  are  the  following  : — 
A 
B 
Percentage  of — 
% 
Phosphoric  acid 
13-09 
1016 
equal  to  tribasic  phosphate  of  lime  . 
Phosphoric  acid  soluble  in  2%  solu- 
28-60 
22-20 
tion  of  citric  acid  .... 
6-59 
equal  to  tribasic  phosphate  of  lime 
14-40 
Fineness  ..... 
70-00 
7000 
“ A ” was  guaranteed  to  contain  28  per  cent,  of  phosphates 
and  to  be  of  80  per  cent,  solubility  in  citric  acid,  with  a 
fineness  of  grinding  of  80  per  cent.  The  solubility  in  citric 
acid  amounted  to  only  50-35  per  cent.,  and  the  fineness  was 
10  per  cent,  below  the  guarantee. 
“ B ” was  guaranteed  to  contain  26  per  cent,  of  phosphates 
and  to  be  of  80  per  cent,  fineness.  In  both  respects  it  was 
deficient. 
2.  Dissolved  Bones. 
Moisture  15  61 
1 Organic  matter  and  water  of  combination  . 25'56 
Monobasic  phosphate  of  lime  . . . . 8'57 
equal  to  tribasic  phosphate  of  lime  (bone 
phosphate)  rendered  soluble  by  acid  . . (13  42) 
Insoluble  phosphates.  .....  ’84 
Sulphate  of  lime,  alkaline  salts,  &c.  . . . 47-04 
Insoluble  siliceous  matter  .....  2 38 
10000 
1 Containing  nitrogen  ......  T37 
equal  to  ammonia  . . . . . . T66 
This  is  a case  to  which  reference  has  already  been  made. 
The  manure,  one  which  was  really  nothing  more  than  a mixed 
VOL.  71.  X 
