Internal evidence (the concluding lecture's own byline repeated twice as 'by Neville Goddard 7/1/1956', and its 'this morning' framing matching a Sunday) contradicts the doubtful catalog date of 1956-02-17 behind this event's title and instead places the two-week series ending 1956-07-01 -- i.e. circa 1956-06-17 to 1956-07-01, not February 1956.
Date (happened)
between 17 June 1956 and 1 July 1956
probable
between 17 June 1956 and 1 July 1956
conclusion · probable
Why
dc1-agreement-20261004, pm-actor-551 (PM 8702)
Reasoning
1 claim, no conflict: 1956-06-17–1956-07-01 (passage:551414).
between 17 June 1956 and 1 July 1956
estimated · probable · preferred
Why
Title says 'February 1956'; the internal evidence contradicts the catalog date behind that and supports July 1956 instead.
Reasoning
The concluding lecture's own delivery date is probable at 1956-07-01 (repeated internal byline dateline, and 'this morning' framing matching a Sunday, contradicting the doubtful catalog date of 1956-02-17, a Friday, this corpus's usual evening-lecture night). Twice in this lecture Neville says he has spent 'the past two weeks' teaching this material, placing the two-week series from roughly 1956-06-17 to 1956-07-01, not February 1956 as the event's title has it.