Effects of grazing upon western yellow-pine reproduction in the national forests of Arizona and New Mexico . Fiq. 1.—Uninjured Thrifty Yellow-Pine Reproduction from4 Inches to 4 Feet Tall and from 3 Years to 14 Fiq. Yellow Pine AxA Feet Tall, with LateralsSeverely Grazed by Sheep. Leader Out of Reach of this Class of Stock. Bui. 580, U. S. Dept. of Agriculture. Plate I!.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectforestsandforestry