410 ANNUAL REPORT OF THE Off. Doc. 



"What method do you recommend to mix Paris green with water 

 «0 as to make a regular and thorough mixture?'' 



MR. COX: In my experience with it I put it in the water and used 

 a spray pump to it for a little while and that did the work. 



MR. W. H. STOUT: Mr. Chairman, in applying Paris green I think 

 it is better to mix a little lime water with it to avoid burning. 



MR. J. H. LEDY: I asked that (juestion myself and I was desirous 

 that Professor Surface should answer it. He does not seem to bo 

 hei»e. He know^s exactly how to mix the Paris green with water, 

 and 1 question very much whether there are two men out of every 

 five in the audience that know how. I mixed Paris green for 

 nine or ten years and didn't know how until a year ago. It is a 

 serious matter. We are trying to teach farmers to use sprayers 

 and the various sprays, and nearly all of them have Paris green in 

 them, and there is not one man out of fifty who can tell them how to 

 mix it. The gentleman said you should put the Paris green in water 

 and agitate it with the spray pump. That is not the right way, and 

 it cannot be mixed perfectly in water that way. There is onl^ 

 one way to do it. That is to add a little water to the Paris green 

 and use a paddle and work it well, and add more water until it is 

 like putty and then pour in more water and mix like paint, and then 

 add the full amount of water and it will not settle. 



MR. BLYHOLDER: The next question is addressed to Hon. T. J. 

 Philips, and is as follows: , 



"In high grade dried blood containing 16 per cent, of nitrogen, 

 what per cent, is there of phosphoric acid and potash. Also is it 

 not cheaper and better to pay |1.00 per ton for mixing than to 

 attempt home mixing of fertilizer?" 



MR. PHILIPS: I answer that in the affirmative; yes, sir. I ques- 

 tion whether any of us, using complete fertilizers in the general 

 way, can afford to mix them ourselves. Perhaps if we were special- 

 ists, using them in very large quantities we could do it. I think I 

 referred to that this afternoon. The manufacturers of fertilizers 

 rarely takes his ton of nitrogen from one source. I refer to nitrate 

 of soda as being the chief source. But nitrate of soda is instantly 

 soluble and consequently if applied to the plants other than in 

 full vigor of grow^th, or when the ground is not full of the vigorously 

 hungry roots there is a danger more or less of that soluble nitrogen 

 being washed through thp sub-soil and lost. So that the manufac- 

 turers of commercial fertilizers, even though they only put in 82-100 

 of one per cent., 16 pounds in a ton will take the contents from three 

 sources. They will put in nitrate of soda to be of instant use; a 



