Monday, February 15, 2016

Peirce's Note Cards

Charles Sanders Peirce was an early adopter of the index card system. He used 3 x 5 and 2 X 5 cards between 1886 and 1891 for his drafts of definitions for the Century Dictionary and Cyclopedia. Many have been lost, but there are four large boxes extant with several thousands of cards.

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