IMPROVEMENT OF CITRUS FRUITS THROUGH BUD SELECTION. 13 



The orchard and stanchird grades are sized with a siiiall automatic 

 sizer into 11 different (-oniniercial sizes, viz., 80, *J6, 112, 126, 150, 

 176, 200,'.216,-^S0,'288, and 300 to a box. 



In the beginnint,' of the Washington Navel orange work, rings of 

 the corresponding sizes were used and the sizing was done by hand. 



Fig, 4. — "AUbtralittii " type, a barren and \vorthle.ss type of the Washington Xavel orange. 



This is a perfectly satisfactory method, but w^th the large number of 

 trees studied the automatic grader is more efficient. In the case of 

 pomelos or lemons the sizijig nnist of necessitv be done with rings, as 

 there is at present no satisfactory automatic sizer available. The 

 orange sizer is small and compact and easily moved about the grove 



[I'ir. TT] 



