C. G. Abbot

1872 – 1973

• The kampometer, a new instrument of extreme sensitiveness for measuring radiation
• Great inventions
• The larger opportunities for research on the relations of solar and terrestrial radiation
• The sun
• The sun and the welfare of man
• 1945-1946 report on the 27.0074-day cycle in Washington precipitation
• 1946-1947 report on the 27.0074-day cycle in Washington precipitation
• 1947-1948 report on the 27.0074-day cycle in Washington precipitation
• 1948-1949 report on the 27.0074-day cycle in Washington precipitation
• A 27-day period in Washington precipitation
• A group of solar changes
• A long-range forecast of temperature for 19 United States cities