72Tagebuch 4. I. 1968 – 31. XII. 1968 [Rudolf Carnap: Tagebücher], Eintrag Sa 7. XII. 1968

A. M. Hilbe (reads to me Feigl’s new „Wiener Kreis in USA“. He reports in detail and very well the development of the views in the Vienna time + esp. afterwards in USA. And the contributions of various people like Reichenbach, Hempel, Helmer, Zilsel, Neurath gives much more information about this development than the other books. I think, he should expand this to a whole book.)

Bohnert calls. (He is happy at Lansing, but his job is uncertain.🕮