Even with institutional login, HathiTrust does not show the full text online for this journal. It only permits searching and then showing the page numbers of the matches, which can be done without logging in.
But I think this journal does not contain the date.
Searching for "his religion" (with quotation marks) in volume 6 via HathiTrust shows a single match on page 11. Searching for the same text via the Google Books link from your other post shows the following entry among a list of what I assume are lectures:
> 919 Jesus: His Religion, Or The Religion About Him ... 10.00 7.00
The first number is some kind of index or serial number. The second number is the cassette cost and the third is the reel cost. You can see the column headings by searching for the number 900.
Searching for "Watts" in the same book via Google Books shows the title of page 11, "New Alan Watts Lectures".
Searching for the year numbers, the matches on that page seem to be for some text about the indexing of works in MMRI-1970, 1971 and 1972, rather than a publication year.