BUD VARIATION IN THE WASHINGTON NAVEL ORANGE. 135 
of the fruit, color and texture of the rind, and its freedom from scars, 
blemishes, or abnormal markings. By reason of the higher color and 
smoother texture of the rind of the Thomson fruits there usually is a 
larger proportion of first-grade fruit produced by this strain than by 
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Fig. 9. — Diagram showing the percentages of fruit of the different commercial grades produced by the trees 
of the several strains of the Washington Navel orange in the investigational performance-record plats 
during a 4-year period, 1912 to 1915, inclusive. The strains are listed according to their proportion by 
weight of Orchard (or first) grade fruit. / 
the Washington, as is shown by the relative position of these two in 
this table. However, the quality of the Thomson fruits, as shown 
by the texture of the rag and the flavor of the juice, is inferior to that 
of the Washington fruits. It should be noted that in this diagram 
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Fig. 10. — Diagram showing the percentages of Orchard and Standard grade fruit in the marketable crops 
of the trees of the several important strains of the Washington Navel orange found in the investiga- 
tional performance-record plats during a 4-year period, 1912 to 1915, inclusive. The strains are listed 
according to their proportion by weight of Orchard (or first) grade fruit. 
the two strains ranking highest are ones which have characteristics 
of both the Washington and Thomson strains. The first one, the 
Washington-Thomson, bears fruits having the appearance of those 
of the Washington strain, though the characteristics of flesh and 
