There has been data ("Wittgenstein's Whewell's Court Lectures: Cambridge, 1938 - 1941, From the Notes by Yorick Smythies - ISBN-13 978-1-119-16638-2") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Fri Dec 27 12:27:34 2019, so the data displayed here has been removed .