 — 
LUTHER BURBANK 
Meantime, referring specifically to the orange, 
it requires no great powers of observation to dis- 
cover why this tree stands in such pre-eminent 
need of an exceptional water supply. 
It is only necessary to recall that the bulk of 
the fruit is juice, each orange containing four or 
five ounces of water, to discover what the tree does 
with the liquid it imbibes so freely. A well-laden 
orange tree, with say a thousand mature fruits, is 
carrying the equivalent of thirty or forty gallons 
of water in its globular buckets; and of course 
there is constant transpiration of moisture from 
the leaves which in the aggregate is far greater. 
HYBRIDIZING POSSIBILITIES 
And all of this, of course, applies not merely 
to the orange but to the allied citrus fruits, in 
particular to the grapefruit and the lemon. 
Indeed, the entire company of citrus fruits is 
characterized by exceeding juiciness of pulp, the 
bulk of the fruit being made up of water—with 
delicious acids and sweets instilled therein— 
merely intermeshed with enough thin fibrous tis- 
sues to give stability to the fruit structure. 
These fruits are further characterized by the 
unique quality of the fruit-covering, which is 
painted with marvelous hues that are so unique 
as to have given their names to prominent pig- 
ments of the painter’s color box; and incorporate 
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