238 



FERTILIZERS FOR VEGETABLES 



valuable that is for the farmers to use as far as helping the 

 soil is concerned? 



Professor Van Slyke: That is a high grade marl. It 

 runs pretty nearly pure calcium carbonate. It is capable of 

 being ground finer because it is softer than the ordinary 

 limestone. 



Question : Would the product of the Sjrracuse Stone Com- 

 pany be as good as that when delivered? 



Professor Van Slyke: The ground limestone of the 

 Syracuse Stone Companj' is not as rich as the samples of 

 marl in calcium carbonate. 



Question: Would that be valuable in throwing it on the 

 manure in any way? 



Professor Van Slyke: I would not throw it on the 

 manure, because that would encourage decomposition. 



Manure of Birds. 



Question: Is pigeon manure valuable? 

 Professor Van Slyke : Yes. It runs very much like hen 

 manure. 



QUESTION: Is it worth t^venty-five cents a bushel? 

 Professor Van Slyke: Would it run Mt\' pounds to the 

 bushel? 



A Member : I do not think it would. It is dry. 



Professor Van Slyke : I think you could put it this way: 

 you probably could afford to pay at the rate of three to four 

 dollars a ton for it. 



A Member: Would you apply it something as you would 

 phosphate ? 



Professor Van Slyke : A good plan is to mix it and make 

 a complete fertilizer by putting about forty pounds of muck 

 or sawdust, forty pounds acid phosphate, and twentj" pounds 

 of sulphate or muriate of potash, to one hundred pounds of 

 the manure. 



Question: Is the same thing true of hen manure? 

 Professor Van Slyke: The same thing is true of hen 

 manure. 



