8 

 Deficiency Statistics for Mixed Fertilizers — Concluded. 



Manufacturer. 



Number of 

 Brands. 



S3 01 



>^ a 



o K c 



!? n ° = 



Number of Tests or Determinations. 





.:§n3 



oi 

 •5 ^ 



■S.S 



Old Deerfield Fertilizer Co., Inc. 



Olds & "Whipple, Inc. 



Oyama Products Co. 



Parmenter & Polsey Fertilizer Co . 



Pawtucket Rendering Co. 



Piedmont-Mt. Airy Guano Co. 



Rogers & Hubbard Co. . 



Ross Brothers Co. 



F. S. Royster Guano Co. 



M. L. Shoemaker Co., Inc. 



Springfield Rendering Co. 



James A. Sturges & Co. 



Henry J. Taubert . 



William Thomson & Sons, Ltd. 



Uniform Products Co. . 



Victory Fertilizer Co. 



C. P. Washburn Co. 



Wilcox Fertilizer Co. 



Worcester Rendering Co. 



Wm. P. Young & Son . 



18 

 3 



11 

 2 

 7 

 2 

 1 

 1 

 2 

 3 

 3 

 7 

 5 

 1 



11 



8 

 1 

 7 

 5 

 8 



18 

 3 



H 

 2 

 7 

 2 

 1 

 1 

 2 

 3 

 3 

 7 

 5 

 1 



33 



24 



3 



21 



15 



24 



54 



9 



33 



5 



21 



6 



3 



3 



6 



9 



9 



21 



15 



3 



I Where several analyses of the same brand occur an average is secured and recorded in case of deficien- 

 cies as well as for total number of tests or determinations. 



Summary of Low Tests in Mixed Fertilizers. 



Serious Commercial Shortages in Mixed Fertilizers. 



' There was one sample in one brand that showed a commercial shortage of $2.75. Several other samples 

 of the same brand showed a sufficient overrun so that the average analysis showed no serious commercial 

 shortage. It does not, therefore, appear in this group which includes the average analysis of as many 

 samples as were drawn of any one brand. The sample showing a commercial shortage is published with 

 appropriate footnote in the table listing the brands that were commercially deficient. 



Three hundred and forty-three brands were analyzed. Of these, 240, about 

 70 per cent, were found to have no deficiencies. Of the 1,026 guarantees made, 

 117, or 11.4 per cent, failed in passing, as compared with 22 per cent for 1926 and 

 12 per cent for 1925. 



Of the total number of brands analyzed, about 8 per cent failed to meet their 

 guarantee in nitrogen, 10 per cent in available phosphoric acid, and 16 per cent 

 in potash. This is a much better showing than during 1926 when 18 per cent 

 failed to pass in nitrogen and available phosphoric acid, and 30 per cent in potash. 



