EQUIPMENT FOR FUMIGATING NURSERY STOCK IOQ 



dirt floor will answer, provided the room is made per- 

 fectly tight at the bottom. 



Two other model houses are shown in Figs. 60 and 

 61. The former is for a large nursery, while the latter 

 is used for a smaller concern, handling half a million 



FIG. 64 DOUBLE HOUSE IN CANADA FOR FUMIGATING TREES 

 ON A WAGON 



trees or less. The latter is used for a storehouse when 

 not in use for fumigation. 



One of the newest fumigating houses in the north- 

 west is shown in Fig. 62. It is 10 x 14 feet. The 

 details of construction are about the same as those 

 already given. The ventilator and method of oper- 

 ating it is shown in Fig. 63. This house, complete, 

 cost about $70. 



Of the many fumigating houses in use in Canada 



