754 ANNUAL. REPORT, OF THE Off. Doc. 



iiotiibly, boiiiji; 12 to 14 per cent, above the computed values. The 

 wholesale inaiket ])rices for the periods named allord no clear ex- 

 planation of this advance; for from 11303 to 11)04, the mine prices of 

 Charleston rock fell greatly and those for Tennessee rock did not 

 fully maintain the 11)02-3 level; sulphuric acid recovered but slightly 

 from the drop of 11)02-3, and the ^acid phosphate wholesale prices 

 show only a trifling advance. The reasons for the increased retail 

 piices of 11)03 are evidently to be found in peculiarities in the con- 

 ditions governing the retail sale of the manufactured product. 

 Owing to the uncertainty respecting the permanance of these sale 

 conditions, the schedule for rock phosphate values for 1904 has been 

 changed but slightly. The change made reflects the slight increase 

 in the wholesale price' of acid phosphate and places the value of 

 reverted phosphoric acid in rock goods upon the same basis in re- 

 lation to that of water-soluble phosphoric acid as has been given to 

 it in the case of acidulated bone goods. 



The schedule for 1904 as a whole is as follows: 



Schedule of Values for Fertilizer Ingredients, 1904. 



Nitrogen : 



In ammonia salts 



In nitrates 



In meat, dried blood and mixed fertilizers 



In cotton seed meal and castor pomace, 



In fine ground bone and tankage 



In coarse bone and tankage, 



Phosphoric acid: 



Soluble in water, In bone fertilizers 



Soluble in water, in rock fertilizers 



Soluble in ammonium citrate, in bone fertilizers 



Soluble in ammonium citrate, in rock fertilizers, 



Insoluble in ammonium citrate, in bone fertilizers 



Insoluble in ammonium citrate, in rock fertilizers 



In fine bone, tankage and fish 



In coarse bone and tankage 



In cotton seed meal, castor pomace and wood ashes 



Potash : 



In high grade sulphate or in forms free from muriate, 

 As muriate 



Cents 

 per Pound. 



17% 

 16 



nvz 

 leva 



13 

 11 



4^4 



3 



4% 



3 



2 



1% 

 3 



2^ 

 4 



5 



4% 



Potash in excess of that equivalent to the chlorin present, will be 

 valued as sulphate, and the remainder as muriate. 



Nitrogen in mixed fertilizers will be valued as derived from the 

 best sources of organic nitrogen, unless clear evidence to the con- 

 trary is obtained. 



Phosphoric acid in mixed fertilizers is valued at bone phosphoric 

 acid prices, unless clearly found to be derived from rock phosphate. 



Bone is sifted into two grades of fineness: Fine, less than 1-50 inch 

 in diameter; coarse, over 1-50 inch in diameter. 



The result obtained by the use of this schedule does not cover the 

 items of mixing, bagging, freight and agents' commission. To cover 

 these, allowances are made as follows: 



For freight, an allowance of $2.00 per ton on all fertilizers. 



