EXPERIMENT STATION BULLETINS. 



389 



SUMMARY OP RESULTS OP INSPECTION 



Manukacturef. 



American Agricultural Chemical Co 



Armour Fertilizer Works 



R.BbderCo 



E. Burton 



Calumet Fertilizer Co 



Darling & Company 



Farmers Fertilizer Co 



Federal Chemical Co 



Fertile Chemical Co 



Gleaner Clearing House Assocition 



Independent Packers Fertilizer Co 



International Agricultural Corporation 



.larecki Chemical Co 



Michigan State Grange 



National Plant Food Co 



Natural Guano Co 



Nitrate Agencies Co 



Nu-Life Fertilizer Co 



Packers Fertilizer Co 



Pulverized Manure Co 



Queen City Fertilizer Co 



F. S. Royster Guano Co 



Smith Agricultiu-al Chemical Co 



J. L. & H. Stadler Rendering & Fertilizer Co 



N. Swartz 



Swift & Company 



United Chemieal & Organic Products Co. . . . 



Virginia-Carolina Chemical Co 



Wolcott Packing Co 



Wuichet Fertilizer Co 



•a 

 a 



a 



80 



25 

 1 

 1 

 3 



11 

 9 



25 

 2 

 7 



12 



15 



11 

 7 

 1 

 1 

 1 

 1 



11 

 3 

 1 



15 

 9 

 8 

 1 



24 

 8 



23 

 2 

 5 



323 



a 



221 



72 







1 







57 



10 



71 



4 



2 



30 



31 



49 



10 



1 







1 







22 



2 



1 



67 



37 



17 



1 



85 



23 



27 



1 



20 



863 



O) O 



& o 



° a 



£.° 



fc- O) 



flj a 



a a 



=3 — 



1 



27 

 

 1 

 



27 

 5 



26 

 2 

 

 8 

 4 



14 

 

 

 

 

 

 4 

 

 



13 



12 

 1 

 



34 

 5 

 3 

 

 



187 



a § 



be 



221 



61 







1 







45 



7 



62 



1 



2 



21 



27 



45 



10 



1 







1 







21 



2 



1 



61 



30 



17 



1 



65 



23 



24 



1 



20 



771 



.5 2 



o a 

 a > 





 9 

 

 

 

 9 

 3 

 5 

 3 

 

 4 

 2 

 3 

 

 

 

 

 

 

 

 

 4 

 5 

 

 

 13 

 

 2 

 

 



62 



27 



217 



49 







1 







32 



6 



47 



1 



1 



7 



22 



34 



9 



1 















19 



2 



1 



47 



19 



15 



1 



37 



20 



24 



1 



20 



633 



A study of the above table brings out the following interesting points : 



1. Eighty-nine (89) per cent of all samples analyzed were equal 

 to the guaranteed value. 



2. Seventy-three (73) per cent of all samples analyzed were 5 

 per cent or more above the guaranteed value. 



3. Seven (7) per cent of all samples analyzed were not within 5 

 per cent of the guaranteed value. 



4. Three (3) per cent of all samples analyzed were not within 10 

 per cent of the guaranteed value. 



SAMPLES REQUIRING SPECIAL MENTION. 



Sample A-1788. Armour's Michigan Special, manufactured by Armour 

 Fertilizer Works, Chicago, Illinois. This sample was drawn from stock 

 held by L. R. Glassford, Capac. It was found to be below guarantee 

 in potash. Objection was raised on the ground that a mistake in sampling- 

 might have been made. Another sample, A-2464, was drawn from the 

 same shipment and the analyses of the two samples are here given for 

 comparison. 



