The Commens Dictionary
Quote from ‘Logical Tracts. No. 1. On Existential Graphs’
A pseudograph is a construction out of elements like those of graphs, but which, owing to the way in which these are put together, has no meaning as a diagram of the system to which it belongs.
MS [R] 491:1-2
‘Pseudograph’ (pub. 13.01.15-12:29). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from http://www.commens.org/dictionary/entry/quote-logical-tracts-no-1-existential-graphs-11.