First published in 1869, this book chronicles the spiritualist activity of medium Daniel Dunglas Home (1833-86) over two years.

They come to our aid when we least expect it, and they disappear as soon as their work is done. We all regularly receive messages from our guardian angels and spirit guides but usually fail to recognize them. This book aims to help the reader to realize when this occurs.

List of members in v. 1, 6, 12.

This work, published in the 19th century, was the culmination of more than 20 years of research into the spiritualistic matters like the survival of consciousness after death. The author was fascinated with spiritualism and mediumship which led him to examine mediumistic communications in particular and psychic functioning in general.