The Supernatural: Now Available!
This is a frightfully short but very interesting work which, as with a few others I have edited, is primarily a speech (an oratory) meant to be delivered to an audience, as opposed to a booklet in and of itself. Penned by the well known Congregationalist Lyman Abbott. Here he expounds a bit on his evolving conception of his god and the presence of spiritual forces and states that he conceives of his deity as inter-penetrating all things while also refuting polytheism.
The title is slightly misleading since it is more about the form of divinity than the supernatural in a more general sense but it is still an interesting opinion piece.