Books on Amazon
Hypotheses/Poundstone: most are generalizations - Nicods criterion (Raven paradox): Relevance - black and non-black non-ravens are irrelevant.
I 60 Poundstone: even observing black ravens is virtually irrelevant - I 88 poor hypoth. spoil good supporting evidence.
Auxiliary hypotheses/Coherence theory/Poundstone: additional hypotheses usually areassumptions about the functioning of the instruments - problem: often the applicability of the modus tollens is not guaranteed - E.g. Uranus was correctly predicted due to perturbations, Neptune wrongly predicted based on the same assumptions and methods.
I W. Poundstone Im Labyrinth des Denkens, Reinbek 1995