No. 4.] SANITARY MILK. 113 



system with success. Supposing we had a flue running right 

 up here [indicating] , a room this size, with 30 cows in it ; 

 it would Avant to be 3 feet wide and 1 foot deep. Down here 

 is an opening that can be opened an inch, or the whole panel, 

 or anything between, — a tight-fitting panel. The intakes 

 should start on the outside, back a ways from that, with an 

 opening in the outside of the wall out through there [indi- 

 cating] , running up through the wall and opening up close 

 to the ceiling. Those intakes should be open all the time, 

 and the amount of air which is sucked into the barn or is 

 forced into the barn should be such that the temperature and 

 purity of the air in the barn is kept as you want it. Here 

 at the ceiling again should be another opening in this flue, 

 Avhich runs out, that to be opened on hot, sultry days, when 

 you find the stable is too warm. All the heavy gases and 

 impurities are supposed to be lying near the floor. That flue 

 should continue up, foUoAving along to the roof of the barn, 

 but with insulated front, running up to a peak, with a little 

 chimney on it. You want a good, strong draft ; and if you 

 get that, with that flue and everything made perfectly tight 

 so it doesn't leak at all, the King system will work well, 

 providing you have intakes enough. You should have a 

 large number of intakes ; I would have four flues in a build- 

 ing of this size. 



Question. You also see that the flue is cleaned from any 

 cobwebs that may get in there? 



Mr. Dawley. Yes ; clear from cobwebs and dirt. 



Mr. Frank B. Allen (of Springfield) . I have heard with 

 a great deal of interest the lecture of the morning, and it is 

 on just the right lines. What we want is cleaner market 

 milk. You can't get clean, wholesome milk out of the sta- 

 bles we have within a radius of 10 or 12 miles of Springfield, 

 even after inspection. Inspection has done good work on 

 many farms, the farmers having had their attention brought 

 to the conditions surrounding their places ; and we are get- 

 ting this year here in the city of Springfield a better milk by 

 25 per cent than we did in former years, through the efforts 

 of the Massachusetts State Board of Health, which led us to 

 pay attention to our conditions here, and that is well worth 



