75:; 



ANNUAL REPORT, OF THE 



Off. Doc. 



TLo (}Uotatioii.s lor bom- aic ^ivi'ii without specilic ii't'crence to 

 (luality, so (hat it is impossible from (licse data to fairly apportiou 

 tlu'ir several wholesale values (o the nitrogen and phosphoric 

 acid coutaiued in this material. As compared with taukaj;-e, the 

 general tendency is to assign a Jiigher commercial rating to the 

 phosphoric acid in bone and to the Jiitrogen a rating not very dif- 

 ferent from that given in tankage. Tlie ((notations of Thos. J. 

 \A'hite cVc Co. show an average wholesale rale in I'altimore during 

 Sei)tember, VM'S, to March, 11)04, for crushed tankage to have been 

 I25.U72 per unit of ammonia and fO.lU per unit of bone phosphate of 

 lime. This is equivalent to |3.13 per unit of nitrogen and .f 0.218 per 

 unit of phosphoric acid. The average* composition of the ground 

 bone and bone meal samples analyzed last fall in I'ennsylvania was: 

 Phosphoric acid, 22.97 per cent.; nitrogen, |3.21 per cent. The pre- 

 pared bone contains less fat and moisture and often less nitrogen 

 than the ordinary "rough bone," but these dilferences tend, in a man- 

 ner, to neutralize each other. 



Assuming for the rougli bone quoted in the New York market the 

 same composition as the bone meal sold in I'ennsylvania and for the 

 value of the nitrogen .f8.13 per unit, the values per pound of the sev- 

 eral constituents would be: 



AVholesale Cost per Tound of Fertilizer Constituents, New York. 



II. Bone. 



Grad*. 



•a 



3 



a 

 o 

 o 



Rough bone, 

 Ground bone, 



Nitrogen, 



Phosphoric acid. 



Nitrogen 



Phosphoric acid. 



18.78 

 2.06 



23.42 

 2.57 



A'aluations in Neighboring States. 



It is desirable, from all points of view, that the schedules of val- 

 uation throughout a district in which similar market conditions pre- 

 vail, should differ as little as possible. It has been our practice in 

 the past, to conform our schedule to that adoi)ted after very careful 

 co-operjitive study of market conditions for each year, by the New 

 England states and New Jersey, except where the peculiar condi- 

 tions of our market have made the valuations diverge too largely 

 from the actual selling prices, as in the case of ground bone and 

 dissolved rock phosphates. The schedules for these states for 1903 

 and 1904 are as follows: 



