. Carnegie Institution of Washington publication. DOUGLASS PLATE 12. DIFFERENTIAL PATTERNS. rr.^Sunspot Nos. 1610-1910 at b. 57 European trees, 1830-1910 at 80 European trees, 1800-1910 at South Sweden, 1830-1910 at Vermont group, 1650-1910 at Flagstaff group, 500 years at Flagstaff group at years. Norway, 1740-1910 at years. ?'.f Austria, 1830-1910 at years. c. d. e. f. Norway, N-2, 400 years at Vermont, 250 years at Sweden, 1740-1910 at Sequoia, 1300-250 B. C. at Flagstaff, 500 years at Sequoia, 3200 years at 10
. Carnegie Institution of Washington publication. DOUGLASS PLATE 12. DIFFERENTIAL PATTERNS. rr.^Sunspot Nos. 1610-1910 at b. 57 European trees, 1830-1910 at 80 European trees, 1800-1910 at South Sweden, 1830-1910 at Vermont group, 1650-1910 at Flagstaff group, 500 years at Flagstaff group at years. Norway, 1740-1910 at years. ?'.f Austria, 1830-1910 at years. c. d. e. f. Norway, N-2, 400 years at Vermont, 250 years at Sweden, 1740-1910 at Sequoia, 1300-250 B. C. at Flagstaff, 500 years at Sequoia, 3200 years at 101. Flagstaff, 500 years at 120. q. Standard 5-year period at years. r. 5 to 10 year logarithmic variable period at J- k. I. m o. 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 Carnegie Institution of Washington. Washington, Carnegie Institution of Washington
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