No. 6. DEPARTMENT OF AGRICULTURE. 521 



entitled to this work as though the room was full." I never have for- 

 gotten it, and there never has a farmers institute gone by the board 

 if there was one man present. I believe that is the right principle to 

 work under. 



Now I am taking it for granted that we have a room ready for the 

 ventilating flues, unless there is some question that you would like 

 to bring out; if there is any such question concerning the construc- 

 tion, let us have it now. I want you to understand that if the con- 

 struction is not right, the flues won't work, and I could not guarantee 

 for a moment that you would get satisfaction out of any system of 

 ventilation which should fairly well control the temperature in that 

 vicinity. 



MR. FENSTERMAKER: Will they answer for some other kind of 

 a tie besides the stanchions? 



MR. COOK: Yes, I have provided here for almost any kind. (Re- 

 ferring to drawing on blackboard). This you will understand repre- 

 sents concrete work. The concrete work may perhaps have to be 

 changed somewhat to meet the requirements of the case. I have 

 seen buildings in pretty nearly every shape where mistakes have been 

 made. Now we are going to take the air in through certain flues 

 and going to throw it out through certain other flues. This means 

 first that the flues through which the fresh air, the cold air from the 

 outside comes in, must be thoroughly distributed around the room, 

 or if not possible to do that, as far as they will go. 



Now we will suppose that we have here a given amount of air 

 which we will say is sufficient for the room, whatever the size 

 might be. Don't you readily see that the currents of air would 

 form in this shape (indicating) and that this great body or bulk of 

 air in that room would hardly be changed. (See Fig. 1.) That seems 

 easy, does it not, provided this room is tight. If we take the air out 

 of this corner, and take the air out of the opposite corner, we will 

 have not only foul air, but have a condensation of moisture there. 



Now come over to this building (indicating on blackboard) and we 

 will take the air in at these points. There is another proposition: 

 Many men have made a mistake right there, especially if the barn 

 had an L attached to it in this shape, and this was all in one stable 

 or one room. They have not, some of them, realized that it was nec- 

 essary to provide for the intake flues in that projection. (See Fig. 

 2.) No matter how small that is, it will be as necessary to provide 

 for the intake flues in this space as anywhere else. I think that will 

 dawn on you in a moment. In order to prevent condensation, it will 

 be necessary to keep the air in circulation from this point of the 

 room ; the only way we can do this is from these intake flues. 



A Member: How do you construct those? 



MR. COOK: That is what I am going to tell you. I will put it on 

 The board and I have a little model which I will show you as well. 

 Now we want to build those so that they will work, and so that there 

 will be no chance for them to work the wrong way. You have seen 

 ventilating flues that were wrong side up; instead of the air going 

 out, it came in, and vice versa. Now if these flues were built in this 

 wav, and carried on up a very little distance, within the ceiling of the 

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