Full Idea
The concepts of necessity and contingency are detached from those of the apriori and the a posteriori.
Gist of Idea
Necessity and contingency are separate from the a priori and the a posteriori
Source
Harré,R./Madden,E.H. (Causal Powers [1975], 1.IV)
Book Reference
Harré,R/Madden,E.H.: 'Causal Powers: A Theory of Natural Necessity' [Blackwell 1975], p.18
A Reaction
This seems to arise quite independently of Kripke, from the attack by the authors on the Humean view of modality. They also mention the possibility of the apriori contingent.