108 
SEVENTH ANNUAL MEETING OW T0B 
It is generally the low grade that is sold to the growers, as 
the concentrated tankage is almost always bought by manu¬ 
facturers and used in making their special brands. This,like 
guano, is a one-sided fertilizer, and its continued use without 
the application of potash would lead to unprofitable crops, if 
not disastrous results. It is so with all one-sided fertilizers. 
AZOTINE AND AMMONITE 
are animal waste from which grease has been extracted by 
being exposed to the vapor of naptha. These, like tankage, 
are bought up by manufacturers. 
COTTON SEED MEAL, 
Linseed meal and castor pomace are all the result of the 
manufacture of the different oils and are usually termed oil 
cake before it is ground. Every one in this country is familiar 
with the two kinds of cotton seed meal. One from the short 
staple and the other from the long staple cotton. That from 
the former being known as “bright” and the other “dark” 
meal. The bright is a little richer in ammonia than the 
dark, owing to the fact ihat it is freer from the hull. The 
hull ol the long staple cotton is so soft that it is impos¬ 
sible to grind and bolt it all from the meal, thus giving it the 
dark appearance. The former is used a good deal for feed 
and consequently there is a larger demand for it, usually 
selling about $4 per ton more than the dark, while in re¬ 
ality there is only about $1.25 difference in their manurial 
value. Castor pomace should be used with care and should 
be kept away from stock. Linseed meal is used exten¬ 
sively as a feed for horses and consequently its selling 
price is usually considerable above its manurial value. 
HOOF MEAL AND HORN SHAVINGS 
are frequently used in manipulated, fertilizers and they con¬ 
tain a large percentage of ammonia which the chemist can 
find, but which the plants have a hard time to unlock. 
For this reason it is rated as one of the poorest sources 
of ammonia for plant food. In fact I doubt if it would 
pay the growers of Florida to pay freight on it and apply 
it to their soils. This will account to some why it is that 
a fertilizer which has a guaranteed analysis of ammonia that 
seems high and that the chemist says is there gives such 
poor results whpn applied. 
FISH SCRAP 
is probably used more largely by eastern fertilizer manufacture 
