Thanx Monica and Alf for your replies.
For some reason, when I downloaded I didn't notice all of the other editions -- The trials of old age.
The F# is really unconvincing with its m2nd with the G. This is a somewhat harmonically ambiguous section -- The previous measure has cadenced on E minor, but as I look at it more closely, it becomes C major by the end which would allow for G7 (V) leading to an embellishing dim 7 (C#dim7) followed again by an essentially G7 arpeggiation.
If I look at it from the initial E/G -- the G remains through 3 measures and the E splits into 2 voices -- the upper E F(#) E D and the lower E D C# D. (Just thinking on-line).
Any, just be forewarned that I'll make my decision and I don't want anyone telling me that I played an F nat. there when it is written F# (if that is my final decision)