Some were too technical, some too bulky and expensive and some so mixed with other error as to be impossible to recommend. Not a few were written by those who were well informed on the scientific phases of Spiritualism, the findings of the Society of Psychical Research Or the doings of mediums and seances, but whose authors appeared either ignorant of or indifferent to the Bible, which to the Christian, of course, holds the first place and is of final authority.