70 KGGS IN COLD STORAGK. 



age room, after it has been first warmed to the tem- 

 perature of the room to be ventilated. That is, it is 

 safe so far as introducing- moisture or impurities is 

 concerned. If we should ventilate in this way con- 

 tinuously our humidity would be lowered to a point 

 where the eggs might suffer from evaporation. It is 

 necessary, therefore, that observation of the humidity 

 of the room so ventilated be taken, so that this kind 

 of ventilation may not be overdone. 

 Manner of in- The method of getting- air into the rooms under 



troducmg- air. & 



these last two systems of ventilation is of no special 

 moment, except that it be under control, and we have 

 already noted that the only good way of handling- air 

 w r as by the use of fans, preferably large and of light 

 weight, and running at a slow speed. Where the 

 forced circulation is installed, it is sometimes practi- 

 cable to so connect the fans used for this purpose, 

 that cold weather ventilation may be handled by them; 

 but a separate fan is much better, and while seeming 

 more complicated is really simpler to operate, because 

 handled independently. When using an independent 

 fan or when using the forced circulation fan for ven- 

 tilating, the fresh air mixes with the circulation and 

 is well distributed by it to various parts of the room. 

 The ventilation of cold storage rooms is not a 

 matter which can be safely left to such help as may 

 be at hand, and if good results are to be secured " the 

 boss" should see to it himself. Cold weather venti- 

 lation, especially, must be handled scientifically or 

 trouble may result instead of benefit. No absolute 

 rules can be given for handling ventilation because of 

 widely varying conditions, but if what has been writ- 

 ten is read and studied carefully the subject can be 

 taken up intelligently and followed out to its legiti- 

 mate conclusion. 



