58 



it can be applied cold oftentimes, which enable a person to 

 go out and get in an afternoon's spraying when he wouldn't 

 have the old-fashioned on hand or when he wouldn 't feel like 

 going out and boiling it up. It is good for that purpose. 

 There is this commercial lime-sulfur, and lately there has 

 come out the home-made concentrated, in which there seems 

 to be a good deal of interest. This is practically the same 

 as the commercial, except that most of us make it so that it 

 is not quite as strong and cannot be diluted quite so much. 

 This is perhaps not so familiar as the old-fashioned, so per- 

 haps I will just go into the manufacture of this home-made 

 concentrated. There are several formulas given out for it. 

 One that we have used personally is 60 pounds of good stone 

 lime, with a high percentage of calcium and a low percent- 

 age of magnesia. If there is much magnesia in it, it forms 

 quite a heavy sediment. Then to that 60 pounds of lime, aft- 

 er you have got it started slaking with some warm water, 

 put in from 100 to 130 pounds of sulfur, which has previous- 

 ly been made into paste form. After this sulfur is added to 

 the lime, a very high degree of heat is generated and it goes 

 into combination Avith the lime. This is boiled for an hour 

 and if proprly made will give you a mixture which will test 

 from 26° to 28° with the Beaume hydrometer. Now, the 

 commercial mixtures test from 31° to 33°, and they are dilut- 

 ed about 1 to 9. The home-made isn't quite so strong, so 

 you can't use it Avith quite so much water added. We put 

 from 6 tv) 7 parts of water with this home-made. This can 

 be kept indefinitely if it is stored in a tight barrel. The bar- 

 rel ought to be filled full, and if the barrels are not filled en- 

 tirely full, if you have put it in an open barrel and can't 

 cork it up, pour a little oil on, or anything to keep the air 

 from it. If properly made there won't be hardly any sedi- 

 ment in it, and it can he stored from one year to another or 

 can be used cold. 



There is a great deal of difference in the different forms 

 of sulfur. There is the flowers of sulfur and the crude pow- 

 dered brimstone. We tried all these forms and found that 

 the cheapest was the best. The flowers cost about $2.50 a 

 hundred, while the crude powdered sulfur only costs about 

 $1.50 a hundred. I have a sample of it here if any one of 

 you are interested, and it is very fine, as you see. It is sim- 

 ply the sulfur which has been ground up, so that it is the 

 cheapest form, but at the same time it gives the best re- 

 sults with us in the manufacture of anj^ of the lime-sulfur 



