CONTROL SERVICE. 



(A sub-division of the Department of Chemistry, J. B. Lindsey, Chemist.) 



INSPECTION OF COMMERCIAL FERTILIZERS FOR 



THE SEASON OF 1925. 



BY H. D. HASKINS, OFFICIAL CHEMIST, ASSISTED BY L. S. WALKER 

 AND GEORGE B. DALRYMPLE.i 



MANUFACTURERS AND BRANDS. 



During the season of 1925, 86 manufacturers and their subsidiaries, importers 

 and dealers, registered 567 brands of fertihzer and fertilizing materials in Massa- 

 chusetts. Their general character is as follows: 



Complete fertilizers .... 

 Ammoniated superphosphates 

 Superphosphates with potash 

 Pulverized manures .... 

 Ground bone, tankage and dry ground fish 

 Chemicals and organic nitrogen compounds 

 Wood ashes ..... 



349 



7 



1 



15 



65 



127 



3 



567 



An earnest endeavor is made to secure a representative sample of every brand 

 registered. Four sampling agents, beginning the last of March, as soon as fertilizer 

 stocks are being freely delivered to local agents, are continued through the months 

 of April, May and the first part of June, until practically the whole state has been 

 covered. Many of the chemicals and crude stock materials listed as not being 

 collected were not sold unmixed, but were used in special mixtures made at the 

 consumer's order. The brands not sampled are hsted below. 



Brands of Fertilizer Not Sampled. 



Manufacturer and Brand 



Grade 



Manufacturer and Brand 



Grade 



The American Agricultural 

 Chemical Co. 



Agrico Fertilizer for Potatoes 

 Brack's Lawn & Garden Dressing 

 Cereal Mixture ... 

 Complete Potato Mixture . 

 Farquhar's Lawn Fertilizer . 

 Farquhar's Vegetable & Potato 



Fertilizer . . . , 



Listers Potato Manure 

 Listers 4-8-4 Fertilizer 

 Peerless Potato Manure 

 9% Ground Tankage . 

 Ground Untreated Phosphate 



Rock 



Kainit . . . . . 



American Cyanamid Co. 



Ammo Phos . . . . 



4-8-6 



6-6-4 



2-12-4 



3-8-4 



6-6-4 



4-8-4 

 4-8-7 

 4-8-4 

 4-8-7 

 9-9.15-0 



•o-ao.ss-o 



0-0-14 



20-20-0 



Apothecaries Hall Co. 



Liberty Corn & All Crops 2-8-2 . 



Liberty Corn Fruit and All Crops 

 2-12-4 



Liberty Fish Bone & Potash 

 3-10-4 



Liberty Top Dresser for Grass & 

 Grain 10-31^-8 



Carbonate Potash 



Cotton Seed Meal 



Cyanamid . . . . 



Double Sulphate Potash & Magne- 

 sia . . . . . 



Manure Salts . . . . 



Sulphate of Ammonia 



Armour Fertilizer Works. 



Armour's Big Crop Fertilizer 

 4-16-4 



2r8-2 



2-12-4 



3-10-4 



10-3.5-8 

 0-0-61 

 8-0-0 

 25-0-0 



0-0-26 

 0-0-20 

 25-0-0 



4-16-4 



' E. W. Martin assisted in the phosphoric acid laboratory for about two months, and F. J. Kokoski in 

 the nitrogen laboratory three months. 



