A SURVEY OF THE FERTILIZER INDUSTRY. 
FiaurRe 1. 
SOURCES OF AMMONIA 
IN 
MIXED FERTILIZERS 
1918 
BASED ON REPORTS FROM 425 COMPANIES 
AMOUNT USED IN PERCENTAGE OF TOTAL AMMONIA 
AMMONIA BEARING 
MIXED FERTILIZERS DERIVED FROM EACH MATERIAL 
THOUSANDS OF TONS MATERIAL PER CENT 
500 400 300 10 15 20 25 
SODIUM NITRATE 
AMMONIUM SULPHATE 
COTTONSEED MEAL 
ANIMAL TANKAGE 
BASE GOODS 
NATURAL GUANO 
DRIED BLOOD 
GARBAGE TANKAGE 
FISH SCRAP (DRIED) 
CASTOR BEAN POMACE 
LEATHER SCRAP or MEAL 
] FISH SCRAP (ACIDULATED) 
HAIR : 
AMMONIUM PHOSPHATE 
CYANAMID 
HOOF MEAL 
TANKAGE (N.S. ) 
HIDE SCRAP 
OTHER MATERIALS 
127491°—19—Bull, 798-2 
