446 The Principles of Fruit-growing. 
shows the details of the roof construction. The plate 
(h) is held firmly to the wall by a tongue (i) let 
into the brick work. The rafter is b. On this is a 
thickness of sheathing upon either side (a, ¢), with 
i OAL 
Fig. 108. Charles Downing’s fruit-house. 
an air-space at e, and outer sheathing at g, and 
building paper at d and f.” Buildings made upon 
this plan, or one similar to it, are efficient for the 
storage of either vegetables or fruits. 
Waugh* gives the bill of lumber entering into the 
fruit-house in Fig. 111 (page 449) as follows: 
*«Apple Growing in Grand Isle County,” Bull. 55, Vermont Exp. Sta. 
