Apbil 13, 1916. 



The Florists' Review 



139 



An Open 

 Letter 



Believing we can render material assistance in our instructive campaign 

 in the upbuilding and maintaining of soil fertility, our company is; giv- 

 ing time and money to further the interests of the grower under glass. 



With that in view, we have employed practical 

 greenhousemen in our research department, in 

 our laboratory department, and in the handling of 

 our correspondence pertaining to questions arising 

 on soil requirements and plant foods. 



In this work we request the trade to take sufficient 

 interest to co-operate with us, and to coiTespond 

 with us on matters pertaining to their growing 

 products. 



Our main object is to demonstrate the practicabil- 

 ity of making up soil fertility during the growing 

 season through the addition of fertilizers, or com- 

 mercial manures, as the season progresses, and 

 thereby increase the number of flowering crops as 

 well as the quality of the flowers. 



In connection with this work, we are taking into consideration the uses of stable 

 manures and legumes, supplemented by commercial manures that carry nitrogen, 

 phosphoric acid and potash, and the scientific use of a pure carbonate of lime to 

 meet the particular needs of greenhouse soils. 



Last but not least, this company is supported by men who have had wide ex- 

 perience in your problems. They are at your service. Command them. 



Chicago Feed & Fertilizer Co. 



Manufacturers of 

 Steamed Bone Meal, Raw Bone Meal, Blood and Bone, and Special 

 Complete Plant roods for Roses, Carnations. "Mums" and Greens. 



Union Stock Yards, CHICAGO, ILL. 



