There is also a copy of the book in the British Library. I'm not aware that you can order photocopies from Plymouth Library. Last time I wanted a page copying from the British Library they would only copy the whole book which was far too expensive.

Assuming that the song in question is actually Nell Gwyn's song the only thing missing is the tune. I doubt that a 19C tune written by a chaplain would be very singable nowadays, so the only thing to do is put it to another tune.