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FIG. 28. Top. An expanse of young carobs on the eastern foothills of the Great Valley of California.—FIG. 29. Bottom. Young carob plants showing root development resulting from growth in slats. This long root, in combination with ability to plant it uninjured in a vertical position with minimum of effort, is an invention of great importance for tree crops in dry land agriculture. (Photos H. J. Webber.)
