526 REpPoRT OF THE CHEMIST OF THE 
cipitate is then treated by the Kjeldahl method for determining 
nitrogen. The amount of nitrogen multiplied by 6.25 gives the 
amount of albumen. 
4, Remaining nitrogen compounds. — The remaining commonnd 
or compounds of nitrogen are determined by difference, subtract- 
ing from the amount of total nitrogen compounds the sum of the 
casein and albumen. 
In conclusion, I wish to call attention to the crude nomencla- 
ture in common use in stating the results of milk analysis for 
nitrogen compounds. It is an almost universal custom to call 
the total nitrogen compounds of milk casein. It would be quite 
as correct to call the fat of milk palmitin or some similar name. 
This wrong use of the term casein leads to much confusion, and 
it is highly desirable that we should use a more discriminating 
nomenclature. It is also desirable that, in making analysis of 
milk, pains should be taken to separate and determine the differ- 
ent kinds of nitrogen compounds, since our knowledge of these 
compounds is far from complete. 
TRADE VALUES OF FERTILIZING INGREDIENTS IN 
RAW MATERIALS AND CHEMICALS, ADOPTED BY 
EXPERIMENT STATIONS. 
Per pound 
for 1894, 
Nitrogen in ammonia/ salts. .\7). 4.9 S22) .$0 19 
Nitrogen in: nitrates./.200. 0205 (0000 2 143 
Organic nitrogen in dry and fine ground fish, meat and 
blood, and in high grade mixed fertilizers ............ WLSe 
Organic nitrogen in cotton-seed meal and castor-pomace.. 15 
Organic nitrogen in fine ground bone and tankage ...... 163 
Organic nitrogen in fine ground medium boneand tankage 15 
Organic nitrogen in medium bone and tankage.......... 12 
Organic nitrogen in coarse bone and tankage ........... 7 
Organic nitrogen in hair, horn shavings and coarse fish 
BCTAPS' 6 0b ML. WO OATS, I eG ff 
Phosphoric acid, soluble in water'..02.//-. 2. Va 6 
Phosphoric acid, soluble ia ammonium citrate........... 54 
Phosphoric acid in fine bone and tankage............... 5S 
Phosphoric acid in tine medium bone and tankage....... 44 
