J. S. Mill's Methods I

Nobody asked but ...

From Dictionary of Philosophy

Mill's methods: Inductive methods formulated by John Stuart Mill for the discovery of causal relations between phenomena.

Method of Agreement: If two or more instances of the phenomenon under investigation have only one circumstance in common, the circumstance in which alone all the instances agree, is the cause (or effect) of the given phenomenon.

 -- A. Cornelius Benjamin 

 -- Kilgore Forelle