No. 4.] FARM POULTRY. 15 



Plymouth Rocks or Wyandottes, it is apt to have some effect 

 upon the hatching power of the eggs in the spring, and it is a 

 food that has to be fed with discretion. I would say, in a nut- 

 shell, it is a good food for a man with an abundance of common 

 sense to use, but it is a bad food if considered fool-proof. 



Question. Is there any easy way to sour milk in the winter 

 time? 



Professor Graham. Yes, a very easy way is to put the 

 sweet milk in a pail that has had sour milk in it and set it 

 behind the kitchen stove over night and it will be sour before 

 morning. One of the finest things about feeding sour milk is 

 that you don't have to worry about everything being absolutely 

 clean. If you are feeding sweet milk you must have everything 

 clean. The easy way to get it sour is to use a barrel or large 

 hogshead that holds from 30 to 100 gallons, and keep on pour- 

 ing in and out. 



Question. Do you feed the sour milk clear? 



Professor Graham. Yes. As far as drink is concerned, when 

 the thermometer goes below zero, all drinks are taken away and the 

 chickens all eat snow. You will have less trouble with frozen 

 combs and things of that kind if you feed snow. 



Question. You do not think snow brings bowel complaint 

 in any form whatever? 



Professor Graham. No, I have never had that experience 

 with it at all. We let them wallow around in the snow and 

 eat it in cold weather. We dump the water out of the drinking 

 tins and keep them filled with snow. 



Mr. C. R. Harris. You mentioned the use of hydrochloric 

 acid in the drinking water. Would anything else answer the 

 same purpose? 



Professor Graham. I am not in a position to answer that 

 question. I have gotten my information along this line from 

 our veterinary general of the dominion, and I asked him one 

 day, ''Is there any other acid that I could use or recommend 

 in the place of this one?" He answered, "That is the only one 

 that I have positive information on." So that is the best an- 

 swer I can give you. 



Mr. Harris. Is there anything other than judgment by 

 which you can determine the amount and frequency of the use 

 of hvdrochloric acid? 



