EQUIPMENT FOR FUMIGATING NURSERY STOCK 105 



Fig. 56. It consists of one large room, 10 x 8 x 7 

 feet and two smaller rooms, each 4x4x7 feet. Only 

 one of the smaller rooms is lined. The other one is 

 used as a storeroom, in which all chemicals and other 

 materials are kept. 



One of the most convenient houses used has a ground 

 plan of 12 x 1 6 feet. It is divided into three sections, as 



FIG. 59 GENERAL PLAN OF FLOOR. (ORIGINAL) 



follows : one large room 12 x 12, and a small room 4 x 

 8, with a storeroom 4x4 feet. The floor plan and 

 general outline of this building are shown in Figs. 57, 

 58, and 59. It has a double floor with paper between, 

 and a space of one and one-half feet, as shown in the 

 diagram, d d, above which there is a slat floor, on a 

 level with the bottom of the door, as shown at a and 

 b. In the storeroom, e, the floor is solid. In the 

 construction of this building the slats should be made 

 in sections, so they can be removed. It will be found 

 necessary to clean the lower part of the house from 



