Opportunities for studying spirit manifestations came in the writer's way more than twenty years since, and have been recurring quite steadily down to the present hour. Release, long ago, from cramping mill-horse rounds of professional life and thought, and consequent freedom to live and move relatively aloof from annoyances and fears which known or suspected attention to unpopular and tabooed matters is apt to bring, permitted him to be a more open, avowed, persistent, and studious observer of these marvelous works than could most other persons _comfortably_, who had spent early years in academic and collegiate halls. Unhampered by dread of slurs, innuendoes, hints, or growls from either parishioners, patients, or clients, he sought, found, and strove to use thoughtfully, critically, and religiously, extensive and many varied and often very favorable opportunities for estimating the force and value of alleged evidences and proofs that we, all of us, are ever living in the midst of agents, forces, conditions, faculties, powers, and susceptibilities, acting upon or residing in ourselves and our neighbors, which common observation and science have not generally recognized. Thus, as he judges, clews have been acquired to such knowledge as promises, in days not distant, to furnish not only a solution of ancient witchcraft that will stand the tests of time and common sense, but cause human physical science to bring within its embrace agents and forces which have heretofore escaped its recognition. The varied phenomena of spiritualism, witchcraft, and miracle are all _within_ nature. Modern spiritualism, fraught, and all alive, as it is, with evidences, and some sensible _proofs positive_, of a future life, is to-day more efficient in retaining faith among thinking men that a life beyond awaits them, than any and all other forces in operation, or that man can apply. Science--yes, an advanced _science_, based on observed, proved, and provable facts of spiritualism, ancient and modern--is the only power we see that can stay the hope-crushing inroads of the bald materialism which is now dogging the advancing steps of physical science and liberal culture throughout enlightened Christendom.