Fruit-houses. 445 
Fig. 107 shows a simple fruit-house, with tiers ‘of 
trays upon either side of a central passage-way. The 
chimney and the area in the floor 
allow of change of air. Fig. 108 ee 
is a fruit-house of the late Charles 
Downing, of pomological 
fame. Whatever the style 
of the fruit-house, the 
walls above the surface 
of the ground should be 
well provided with air- 
spaces. The accompany- 
ing details of the con- 
struction of celery houses 
(Figs. 109, 110), will suf- 
ficiently explain some of the problems which should be 
considered.* This structure has a brick foundation, 
and the roof is well provided with air chambers and 
paper linings, affording the best protection against 
cold. The additional large air chamber above the 
collar beams, with its separate windows, seems also 
desirable. There are large double doors at each end, 
and the space between each outer and inner door is 
large, and the connections are well arranged for the 
exclusion of cold air. It seems of sufficient interest 
to give a view of such a storage house; but full 
details of construction may not be entered upon in 
this connection. It will be seen that Fig. 109 shows 
the construction of the peak and collar-beam (k) of 
the house, and also of the ventilator (1.1). Fig. 110 
*B, M. Duggar, Bull. 132, Cornell Exp. Sta, 
