89 



R. M. Eldon. During January and February would you con- 

 template using the natural temperature? 



Mr. Allis. With such weather as this I think apples would keep 

 without ice at all. 



E. C. Tyson. It would be necessary for you to think of the 

 maxium amount, would it not. as some years you would not use 

 any scarcely^ 



Mr. Allis. As I understood 'Mr. Cooper, i.ooo tons was the 

 maximum that would ever be required. 



E. C. Tyson. A\'hat does he allow for waste between the times 

 of storing the ice and using it next fall ? 



Mr. Allis. If the house is properly constructed and insulated 

 there will be very little waste. I think ]\Ir. Hedrick has had quite 

 a little experience and can answer some questions that I do not 

 know anything about. 



Mr. Hedrick. While I was teaching in the Agricultural Col- 

 lege, ^lichigan, I worked for several years in connection with the 

 college storage house, holding over 6,000 barrels of apples. I can 

 give you any information about running it but cannot give you the 

 figures. The system worked satisfactorily. It cost 50 cents per 

 ton to put up our ice. ^^'e had no trouble in keeping it, there was 

 very little waste. Sometimes the ice w^ould be in the house three, 

 four or five years. This small storage plan worked very well in- 

 deed. There are, I believe, one or two in the Hudson River dis- 

 trict. 



Member. Was the storage room insulated with cork? 



Mr. Hedrick. It was. There were two thicknesses of cork 

 and two cavities, or air spaces. The cork was only thin, there was 

 no 3-inch cork. 



Member. ]Must ice be taken from the storage room and put 

 somewhere else ? 



Mr. Hedrick. Yes it must be taken from the storage room, 

 mixed with salt and put in the top. You must understand that you 

 have, in the top of your storage, a system by which you make brine 

 and crushed ice, and a pipe system running through your room 

 which carries brine. 



Member. Is this circulation carried on by gravity? 



Mr. Hedrick. It is carried on by gravity entirely. 



Member. AMiat would be the life of the tanks in regard to 



salt ? 



Mr. Hedrick. We have used this house for several years. 

 It is still in use. So far as I know the pipes have never been 

 changed. It is calcium chloride in the pipes, I do not know what 

 the life of the pipes would be. You might have to renew them. 



Member. As the pipes run through the tank, I should think 

 that salt would corrode them and very likely would be sharp. 



Mr. Allis. I asked Mr. Cooper that same question, and he 

 said that the life of the pipes was several years. 



Member. Do you remember the size of those pipes ? 



Mr. Hedrick. About 1V2 inch. They are not expensive pipes. 



E. C. Tyson. Is the question of ice a daily process while in 

 operation in hot weather? 



