48 



CONTROL SERIES No. 100 



Menderth 



Produced and sold by Menderth, Inc., 92 State St., Room 63, Boston, Mass. 



Note: Commercial valuation per ton not over $1.84. 



Organo No. 1 (1.75-1-.5) 



Manufactured by Fertilizer Sales Corporation 



Plant Food Elements 



Nitrogen: 



Total 



Ammoniacal . 



Nitrate . 



Organic . 

 Phosphoric acid: 



Total 



Available 

 Potash : 



Total 



Water Soluble 

 Calcium oxide . 

 Magnesium oxide 

 Moisture 

 Organic Matter 



Sample 1 



Sample 2 



a Activity between 65 and 70 by neutral permanganate method, the passing mark being 80. 



