To infer that iron may be melted, because brass may be melted, is analogy: or to infer the same, because lead, or because tin or silver, can be melted, is still analogy. But to reason that iron may be melted, because brass and copper and lead and tin and silver will all melt, is no longer analogy, but induction.
Lectures on Logic, Section IV (p. 94), J.H. Parker. 1838