AGRICULTURAL EXPERIMENT STATION. 



19 







Solubility in 



Per Cent, of 



Nitrogen in 



Pepsin 



Ferti 



izer. 



Solution. 





6 







d 



s = 



CJ 



d 







~ Gfi 



&>3 



CD 



S3 







£3 



a 



S3 

 00 



O 



a 







go 



S3 



Si 



a> 



M . 

 O si 



;- — 



"3 



S3 



be 



o 

 (- 



"3 

 o 



a sw 



of Org. N 

 Soluble in 

 Solution. 



% 



55 



O 



H 



5 ^ 



# 



ST3 



"3 « 



o.S S 



3 p-H 



Allen's Fertilizer for Lawn. 



Bay State Fertilizer 



Bowker's Potato Phosphate. 

 Bradley's Potato Manure.... 



Buffalo Hop, Tobacco and Potato 

 Phosphate 



Buff tlo Potato, Tobacco and Hop 

 Phosphate 



Cumberland Bone Superphosphate 



Dirigo Fertilizer 



E. Frank Coe's Potato Fertilizer.. 



Farrar's Potato Superphosphate.. 



Nobsque Guano 



Original Bay State Superphos.... 



Powell's Prepared Chemicals for 

 Potatoes and Vegetables 



Quinnipiac Grass Fertilizer. 



Quinnipiac Phosphate 



Quinnipiac Potato Manure.. 



Saendnboc Special Potato Fertili- 

 zer ■ 



Sasradahoc Superphosphate for 

 Hill and Drill 



Standard A Brand Seeding Down 



Standard Fertilizer 



Standard Guano 



Stockbridge Manure, Corn, Grain 

 and Fodder 



Williams & Clark Potato Phos. . . . 



World of Good Raw Bone Super- 

 phosphate 



.20 



1.41 

 .47 



91 



1.6S 



49 



2.21 





1.54 





2.39 



25 



2.18 



26 



1.87 



21 



1.84 



22 



3.40 



70 



1.54 



43 



2.13 





1.15 



25 



2.34 



1.11 



.32 

 .43 

 .21 



1.40 



1.03 



.30 

 .22 

 .16 



2.59 

 2.70 

 2.01 

 2.76 



2.43 



2.13 

 2.31 

 3.62 

 2.24 

 2.56 

 1.15 

 2-59 



59 35.1 



.09 



1.77 



2.27 



3.41 



2.09 



2.9S 



1.89 



2.71 



1.97 



3.37 



1.98 



3.01 



1.30 



1.60 



1.99 



2.19 



1.01 



1.17 



1.81 



3-22 



2.27 



2.74 



2.14 



2.14 



1.54 

 1-00 

 1.50 



1.64 



1.12 

 1.04 



1.48 

 .86 



1.42 

 .62 



1.56 



1.18 

 1.15 

 1.27 



.99 



1.07 

 .81 



1.21 

 .63 



1.20 



57.9 

 75.2 

 73.1 

 67.8 



77.8 



64.8 

 65.4 

 47.0 

 69.6 

 72.3 

 53.9 

 69.9 



69.7 

 64.9 



62. S 



75.2 



59.9 

 56.5 

 43.5 

 55.8 

 66.7 

 53.9 

 66.7 



52.0 

 55.0 

 67.2 



50.2 



54.0 69.8 



62.3 69.4 

 60.8 64.4 



62.4 67.5 



66-3 81.1 



68.3 

 68.5 

 77.1 



70-9 



1.52 67.0 72.6 



1.681 78.5 



78.5 



