Smithsonian Report, 1 920— Garner and Allard. 



Plate 2. 



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A.— Shade cloth, 6 by 6 mesh. Natural size. 



B.— Shade cloth, 8 by 10 mesh. Natural size. 



C. — Shade cloth, 12 by 12 mesh. Natural size. 



D. — Shade cloth, 12 by 20 mesh. Natural size. 



E. — Standard cheesecloth used in 191G experiments. Natural size. 



