400 ANNUAL REPORT OF THE Off. Doc. 



put it in to cook. There are a great many minor details about this 

 thiu^ that if omitted in putting it into practice, will seriously in- 

 terfere with your success. 



.MIJ. PBNSTERMAKER: I think that the Doctor forgot to men- 

 tion stirring 



&• 



DR. FUNK: Yes, but you will need very little stirring if it is in 

 a kettle like I have. If you have it cooked in an ordinary kettle 

 of course you would have to keep stirring. As soon as the lime is 

 put into boiling water, you will have to have that stirred or else 

 it will burn and stick fast, even though there is water above; you 

 have got to stir that loose until it gets into a regular boil, then con- 

 tinue boiling until you have got the combination you want. 



When we cooked at our demonstration, we had one cooking that 

 only took about thirty-five or forty minutes and another in about 

 forty minutes, and I am satisfied that you could have held all the 

 sediment or refuse that was produced, right in your hand. You 

 will find that you have very little if you have good material and 

 cook it as it should be. We put a cover over it to keep the heat 

 in, and then we run it under about a sixty pound pressure. Some 

 will tell you that they can cook just as well with a five pound pres- 

 sure but I have never been able to do it; I find that under a fifty or 

 sixty pound pressure, I can do it a great deal quicker. 



I would rather use the lime, sulphur and salt, or else as a sub- 

 stitute for the salt I would use blue vitriol; take the old Oregon 

 formula. Wherever I have used that I have had splendid satisfac- 

 tion. I believe you can use that as a substitute for the peach. 



A Member: In what proportion? 



DR. FUNK: For a hundred gallons I would use about six or eight 

 pounds of sulphate of copper, but that would have to be in a very 

 dilute form or else it will not mix. 



A Member: Is that more expensive than the salt? 



DR. FUNK: At this time that will cost you about six cents a 

 pound, so that it would only cost you from about ninety cents to a 

 dollar. We find that the sulphate of copper prevents it from wash- 

 ing off better than the salt does; that will form an insoluble com- 

 pound. You know in the Bordeaux mixture it forms an insoluble 

 compound, and it is much more difficult to wash off. 



MR. RODGERS: Last summer where I was at when they put the 

 lime, sulphur and salt together, it turned black instead of the color 

 that you describe. Mr. Foster, who was sent out by the Depart- 

 ment, said he had never before seen anything like that. 



DR. FUNK: There is one thing I think should be attended to by 

 the Department, and that is, to have the lime of different parts of 

 the State analyzed so that we may know what a good lime is. We 

 find that the majority of our limes are strongly impregnated with 

 magnesia, and it takes considerably more than it would if we had 

 a true calcium of lime. 



A Member: You put the sulphur directly into the mixture? 



