The Commens Dictionary
Quote from ‘Letter to J. H. Kehler’
… the third branch of logic, Methodeutic, which shows how to conduct an inquiry. This is what the greater part of my life has been devoted to, though I base it upon Critic.
‘Methodeutic’ (pub. 27.01.13-12:09). 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-letter-j-h-kehler-1.