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Special Notice
Updated: December 19, 2025
Earlier this month The Colvin Study Blog began its transition to a substack account at thecolvinstudy.substack.com All donor accounts to this site are now expired and those wishing to visit the archives will need a paid subscription at the new site which start at $10.00 per month. The Colvin Study Archives consists of thirteen years -- beginning in 2007, of engaging posts, essays, charts, graphs, and original images. All other features, including restored images, and the Gallery remain active at this site.
Thank you for visiting
See you at our new blog home!

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