HANDLING THE CITRUS CROP. 427 



With a double sizer, such as the Huntley, the bright 

 and russet oranges may be separated as they go to the 

 sizer, running one class through one side while the other 

 goes through the opposite side. 



Sizers and Sizing. Citrus fruits of round or oblate 

 form can be accurately sized by machinery. Lemons and 

 limes must be sized by the eye and either sized before or 

 at the time of packing. 



Many different kinds of sizers are on the market and 

 nearly all of them are good, though some are better than 

 others. The most recent styles brought forward are the 

 pneumatic sizers, one of which is shown in Fig. B, Plate 

 XXVIII. 



A good sizer must possess the following points: 



It must size all fruit accurately, whether round or 

 flat, passing the fruit through on its greatest diameter. 

 It must not injure the fruit. It must be easy to operate, 

 for in many cases it is necessary to run it by hand or 

 foot power, though in up-to-date packing houses an en- 

 gine is provided to operate all machinery. It must have 

 sufficient capacity. 



For an ordinary machine a carload per day is very 

 good work. It should be easy to keep in repair and eas- 

 ily adjusted to different sizes. It should be capable of 

 sizing all kinds of round and oblate citrus fruits. 



The diameters of the different sizes of citrus fruits 

 are given in the tables accompanying the section on pack- 

 ing. The sizes of lemons are considerably smaller than 

 those of sweet oranges. The sizes usually packed are: 

 210, 240, 275, 288, 300, 360 and 420. Sizes 300 and 360 

 are regarded as standard or regular sizes, while the others 

 are designated as "off size." 



