CIRCULAR 3 6 9, U. S. DEPARTMENT OF AGRICULTURE 



Figure 3. — A battery of 10 storage bins so constructed that dried-fruit products 

 stored in them can be fumigated. 



Figure 4. — A vacuum fumigating unit in a large general-merchandise storage 

 warehouse. Since it is located along the railroad siding, susceptible commodi- 

 ties are fumigated as they are unloaded from the freight car and before 

 they are placed in storage rooms, where only fumigated supplies are stored. 



