Some Experiments of Luther Burbank 



early, some late; some are pale, and some are 

 black; but all resemble the Pierce more than the 

 Isabella. Cultivating a choke cherry, the seeds all 

 from one parent tree, many variations are found, 

 although the soil in which they are placed is uni- 

 form. Among them was found one variant less 

 bitter than usual ; others earlier or later ripening 

 and with larger or smaller fruit or leaves, and 

 an almost bewildering number and variet}^ of 

 other variations. A peach-almond cross often de- 

 velops a tree as large as ten peach trees or almond 

 trees of the same age. Sometimes a similar cross 

 with different individuals of the same species will 

 produce opposite or totally different results, owing 

 to past heredity, either recent or far back. Crosses 

 are sometimes more vigorous than either parent 

 and more than any descendant, but other cases are 

 just the reverse. The more variant crosses are 

 often less vigorous, and sometimes yield seedlings 

 that can not exist. Sometimes all die in the fruit- 

 ing season. A peach named 'Quality' is one of 

 the best peaches extant — a cross of the Muir and 



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