. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. Fig. 1.—Norway-Pine Seed Bed, 1 Year Old, Halsey, Nebr. Plat in center untreated Remainder of bed treated at time of sowing with a solution containing three-sixteenths fluid ounce of sulphuric acid per square foot of bed. Practically all of the seedlings in the untreated plat have been destroyed by damping-off. Photographed by Charles B. Pool (Fl).. Fig. 2.—Western Yellow-Pine Seed Bed, Kansas Sandhills. Foreground untreated. Background treated at time of sowing with a sulphuric-acid

---

. [Bulletins on forest pathology : from Bulletin , Washington, , 1913-1925]. Trees; Plant diseases. Fig. 1.—Norway-Pine Seed Bed, 1 Year Old, Halsey, Nebr. Plat in center untreated Remainder of bed treated at time of sowing with a solution containing three-sixteenths fluid ounce of sulphuric acid per square foot of bed. Practically all of the seedlings in the untreated plat have been destroyed by damping-off. Photographed by Charles B. Pool (Fl).. Fig. 2.—Western Yellow-Pine Seed Bed, Kansas Sandhills. Foreground untreated. Background treated at time of sowing with a sulphuric-acid solution. Most of the seedlings m the untreated plat have been destroyed by damping-off. Photographed by Dr. J. V. Hofmann (F 2).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington : U. S. Dept. of Agriculture]

---

Size: 2049px × 1219px
Photo credit: © Book Worm / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1910, bookpublisherwashi, bookyear1913