Peloubet’s Select Notes (PSN) was a Sunday School curriculum developed by F. N. Peloubet in the mid 1870’s and continued for over 100 years. The well-known Moody Bible Institute teacher and bibliographer Wilbur M. Smith was the editor for many years, and the bibliographies in the volumes of PSN during his work are worth the price of the entire book.
I have a large collection of PSN. In order to be able to use the PSN in my study, I created an index for myself so that I could look up any passage in PSN. I am currently in the process of transferring the index to the internet, as I know of no other such resource that is publicly available.