544 



ANNUAL REPORT OF THE 



Off. Doc. 



1905, Spring, 

 Fall, , 



1906, Spring, 

 Fall, . 



1907, Spring, 



Rock and potash: 



1902, Spring, 

 Fall, ... 



1903, Spring, 

 Fall, ... 



1904, Spring, 

 Fall, ... 



1905, Spring, 

 Fall, ... 



1906, Spring, 

 Fall, ... 



1907, Spring, 



Dissolved rock: 



1902, Spring, 

 Fall, . 



1903, Spring, 

 Fall, . 



1904 Spring, 

 Fall, . 



1905, Spring, 

 Fall, . 



1906, Spring, 

 Fall, . 



1907, Spring, 



Ground bone: 



1902, Spring, 

 Fall. . 



1903, Spring, 

 Fall, 



1904, Spring, 

 Fall, .. 



1905, Spring, 

 Fall, .. 



1906, Spring, 

 Fall, ., 



1907, Spring, 







> 



23.83 

 24.78 

 24.40 

 22.06 

 22.28 



16.45 

 15.97 

 17.20 

 13.96 

 16.47 

 15.89 

 16.11 

 15.97 

 16.17 

 15.76 

 16.94 



13.73 

 13.64 

 15.13 

 14.64 

 14.59 

 13.89 

 13.64 

 12.21 

 13.75 

 13.45 

 14.04 



28.52 

 28.09 

 28.67 

 27.52 

 28.20 

 27.02 

 29.08 

 27.70 

 29.02 

 27.80 

 31.55 



22.70 

 25.85 

 22.65 

 25.33 

 25.08 



15.05 

 14.46 

 14.74 

 14.86 

 15.46 

 14.92 

 15.49 

 15.04 

 15.19 

 15.06 

 •16.53 



13.49 

 13.70 

 13.34 

 13.12 

 14.05 

 14.09 

 13.86 

 13.51 

 12.98 

 12.99 

 14.72 



26.80 

 27.51 

 27.25 



27.07 

 27.70 

 27.97 

 26.72 

 28.70 

 28.23 

 29.12 

 29.64 



3 CD 



o be 

 m C 

 «-- 



X m 



-1.13 

 1.11 



-1.75 

 3.27 

 2.80 



—1.40 



—1.51 



—2.46 



—1.10 



—1.01 



—.97 



—.62 



—.97 



— .98 



— .70 

 —.41 



—.24 



.12 



—1.79 



—1.52 



—.54 



.20 



.22 



1.30 



—.77 



—.46 



.68 



—1.72 



—.58 



—1.42 



— .45 



—.50 



.95 



—2.36 



1.00 



—.79 



1.32 



—1.91 



From this cornparison, it appears that the valuation of complete fertilizers, 

 made upon the same principles that have been accepted for years, give an aver- 

 age result $2.24 in excess of the actual retail selling prices, although no special 

 allowance had been made for the increased cost of labor and materials in- 

 volved in mi.xing and bagging. It is obvious that either the wholesale quota- 

 tions represent less closely than usual the average wholesale transaction of the 

 past season, or that manufacturers have retailed during the past season on a 

 narrower than usual margin of profit, expressed in percentage of the wholesale 

 cost of raw materials and of manufacture. 



The same divergance appears in the valuation of the few samples of dis- 

 solved bone represented in the analyses. 



In the case of rock-and-potash and dissolved rock, the valuations correspond 

 more closely with the selling prices. 



The bone valuations are $1.91 less than the average selling price, so that the 

 nitrogen valuation may not have been sufficiently raised to represent market 

 conditions. 



The work of the past season was allotted as follows: Reception and custody of 

 samples, supervision of computations, M. S. McDowell; determination of total 

 phosphoric acid, A. W. Broomell; of soluble and reverted phosphoric acid, J. W. 

 White, assisted by H. D. Edmiston; potash, G. C. Given; nitrogen, A. R. Mertz; 

 computer, Miss Alice Jones. 



In the following tables are presented the results of analyses made of the sev- 

 eral samples, single or composite, received from the official sampling agents 

 during this season, except a few withheld from publication by direction of the 

 Secretary of Agriculture because they represent goods concerning whose brand 



