Chemistry of pulp and paper making . Rice Straw (Oryca saliva) Magnification loo diameters. Photographed byBureau of Plate 9 Esparto (Slipa ienacissima) Magnification 100 diameters. Pliotographed byBureau of Standards.

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Size: 1600px × 1562px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1920, booksubjectpaperma, bookyear1920