280 CULTURE OF THE GRAPE. 



while the temperature is reduced, there is necessarily a 

 great amount of moisture constantly accumulating. To 

 avoid this, I would plan a fruit-room, or a refrigerator, as 

 follows : In the fig. (39), the lower square, A, A, A, repre- 

 sents the fruit-apartment. The square, B, is the second 

 story of a refrigerator ; or, on a large scale, it may be a 

 room over the cellar or other fruit-room. In this square 

 is the ice-chest, c, which must be made of some close 

 metaj, a good conductor of cold, and not porous. Iron 

 chests painted thoroughly inside and out will answer 

 every purpose. From one corner of this chest, a small 

 pipe, d, conducts the water of the melted ice entirely 

 away from the house. Another gutter may run around 

 the bottom of the chest to collect and carry off any moist- 

 ure which may be condensed from the air upon the cold 

 surface of the chest. The principle on which such a re- 

 frigerator, or fruit-room, would act, is very simple, and 

 must be understood at a glance. The cold air radiating 

 from the iron chest reduces the temperature of the square, 

 B. This cold air, being heaviest, immediately descends 

 through the wooden pipes, 3, e, to the bottom of the fruit- 

 room; while the warmer air rises through the apertures, 

 /, /, to be cooled, and descend in turn. Possibly it will 

 be found desirable in practice to provide one or two air 



