. Luther Burbank, his methods and discoveries and their practical application; . be hybridized with a member of any otherfamily. But, on the other hand, within the boundsof the citrus family there is full opportunity, as Ihave already pointed out, for cross-fertilization. J am confident that many interesting develop-ments would have resulted from the hybridizationof oranges and lemons and limes and citrons inmy orchard had not the frost treated the tender-lings so harshly. Not unlikely there would havebeen developed new citrus fruits difTering fromany existing one as markedly as the plumcot di
. Luther Burbank, his methods and discoveries and their practical application; . be hybridized with a member of any otherfamily. But, on the other hand, within the boundsof the citrus family there is full opportunity, as Ihave already pointed out, for cross-fertilization. J am confident that many interesting develop-ments would have resulted from the hybridizationof oranges and lemons and limes and citrons inmy orchard had not the frost treated the tender-lings so harshly. Not unlikely there would havebeen developed new citrus fruits difTering fromany existing one as markedly as the plumcot dif-fers from apricot and plum. This, of course, isonly matter of conjecture for the experiments werecut short, as already told, before they passed be-yond the early stages. Still the fact that I was able to effect hybridiza-tion between the various citrus fruits is highlysuggestive and should prove stimulative to otherworkers. Here is a field as yet scarcely entered and onethat offers almost unbounded possibilities. Theorange industry is the great fruit industry of Cali- [290]. Tree of Ponderosa Lemons This tiny tree bears lemons of a size seldom seen in the eastern markets. It is customary in-the lemon-growing regions to pass the fruit through a ring of a certain size, to get standard size, only those that will pass through the ring being shipped. The big lemons are much better than the small ones, but as lemons are sold by the dozen In the eastern markets, it does not pay to ship those of exceptional size. LUTHER BURBANK fornia today, as it is of the Gulf,States. In bothof these regions experimenters should take up thework. It is at least possible that new and strangecitrus fruits may thus be brought into being. As a single hint suggestive of possibilities, letme recall that the very earliest plum in existencetoday is probably the one that I developed bysuccessive hybridizations which ultimately intro-duced and blended the strains of six of the latestplums. Possibly, then, the
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