Rev. Lee's 1850 booklet attempting to prove
The Immortality of the [UNREGENERATE] Soul
This is Rev. Lee's 65-page book, which he published in 1850. (Rev. Lee & his book are reviewed on pages 19-21 of chapter D27, The Immortality of the Soul Controversy.) If you want to read the portion of his book's Preface that I highlighted, it is below on page 4.