Dear Mary, John S., lists - John already gave the background of the dabbit-ruck. Peirce, however, has a drawing stating some related (though not quite identical) points. from the Lectures on Pragmatism, 1903, 5.183 - a curved line which may alternately be perceived as a stone wall. P claims he took it from one of his father's lectures.
Best F Den 14/09/2014 kl. 00.31 skrev Mary Keeler <[email protected]<mailto:[email protected]>> : Frederik and Tullio, isn't this Peirce's sketch of the rabbit-duck, at the top of the first page of Harvard's Philosophical Psychology Laboratory? http://www.fas.harvard.edu/~ppl/ Do you know if that image comes from his work at John's Hopkins, which Max Fisch mentions in Freeman's (Ed.) The Relevance of Charles Peirce? Btw, Max also mentions there that Peirce dated less than a fourth of his unpublished writings, making the task of reconstructing the chronology dependent on all surviving evidence, "to assign at least approximate dates." Digitization of the mss must maximize whatever evidence may be needed! We plan to begin tests for this purpose. —Mary
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