Mill, J. S. (1846). Of propositions merely verbal. In J. S. Mill, A system of logic, ratiocinative and inductive, being a connected view of the principles of evidence and the methods of scientific investigation (pp. 73-79). New York, NY, US: Harper & Brothers.
http://dx.doi.org/10.1037/11967-006
The focus of this chapter is propositions merely verbal. In particular, it looks at essential and accidental propositions, and how real propositions are distinguished from verbal propositions. (PsycINFO Database Record (c) 2016 APA, all rights reserved)