EQUIPMENT FOR FUMIGATING NURSERY STOCK 1 07 



time to time, as more or less dirt will rattle through 

 the slats upon the floor. The slats are used so that 

 the gas can be generated underneath the nursery stock, 

 thereby obtaining a more general diffusion. 



The jar containing the chemicals can be placed 

 under the slats through the small doors at the base, 



FIG. 62 A COMPLETE FUMIGATING HOUSE IN UTAH 



d d, and very often it is advisable in a large room to 

 have two doors of this character, so that the chemicals 

 can be divided and the gas generated on opposite 

 sides. Good results are obtained where this plan is 

 followed. The small doors used for ventilation pur- 

 poses, c c, can vary in size to meet the conditions. 

 The door entering the storeroom need not be double, 

 and 3x6 feet is a convenient size. A good solid 



