00 
IMPEKIAL COLLEGE OE 
Cents per lb . 
in ammonia salts, dried and ground 
fish, azotin, ammonite, dry ground 
meat, castor pomace . 
... 17.5 
in dried and fine ground blood 
... 16.5 
,, nitrates, and fine ground bone 
and tankage . 
... 16 
in fine-medium bone and tankage ... 
... 14 
,, medium bone and tankage. 
... 12 
,, coarse-medium bone and tankage 
... 10 
,, coarse bone and tankage, horn 
shavings, hair and fish scraps. 
8 
dc acid, soluble in water. 
8 
„ soluble in ammium citrate... 
... 7.5 
,, in dry ground fish, and in 
fine bone and tankage. 
7 
„ in fine-medium bone and 
tankage. 
6 
„ in medium bone and tankage 
0 
„ in coarse-medium bone and 
tankage. 
4 
,, in coarse bone and tankage 
3 
' „ in fine ground rock phos- 
phate . 
2 
as high grade sulphate free from 
chlorides . 
... 5.5 
as kainite and muriate . 
... 4.25 
These tables will show that the proportion of the 
retail cost of. the phosphoric acid and nitrogen is nearly 
the same in the two countries. Take, for example, the dry 
ground fish (fish meal) ; in this manure the proportion is in 
Germany 0.50: 1.20—1.40 or 1: 2.5—2.8 andin North- 
America 7 : 17.5 or 1 : 2.5. In coarse fragments of bones it 
is 1: 2.7—3.3 in the former, and 1 : 2.7 in the latter states. 
Hence we can safely assume that also in Japan a similar pro¬ 
portion will not be far from the truth, but as phosphatic min- 
