Full Idea
It is a feature of Popper's philosophy that when the going gets tough, induction is quietly called upon to help out.
Gist of Idea
When Popper gets in difficulties, he quietly uses induction to help out
Source
comment on Karl Popper (The Logic of Scientific Discovery [1934]) by Alexander Bird - Philosophy of Science Ch.5
Book Reference
Bird,Alexander: 'Philosophy of Science' [UCL Press 2000], p.180
A Reaction
This appears to be the central reason for the decline in Popper's reputation as the saviour of science. It would certainly seem absurd to say that you know nothing when you have lots of verification but not a glimmer of falsification.