and is often the
automatic result of a strong thought or emotion projected from one end
or the other--either from the seer or the person who is seen.

The simplest plan will be to give a few instances of the different
kinds, and to intersperse among them such further explanations as may
seem necessary. Mr. Stead has collected a large and varied assortment
of recent and well-authenticated cases in his _Real Ghost Stories_,
and I will select some of my examples from them, occasionally
condensing slightly to save space.

There are cases in which it is at once obvious to any Theosophical
student that the exceptional instance of clairvoyance was specially
brought about by one of the band whom we have called "Invisible
Helpers" in order that aid might be rendered to some one in sore need.
To this class, undoubtedly, belongs the story told by Captain Yonnt,
of the Napa Valley in California, to Dr. Bushnell, who repeats it in
his _Nature and the Supernatural_ (p. 14).

"About six or seven years previous, in a mid-winter's night, he had a
dream in which he saw what appeared to be a company of emigrants
arrested by the snows of the mountains, and perishing rapidly by cold
and hunger. He noted the very cast of the scenery, marked by a huge,
perpendicular front of white rock cliff; he saw the men cutting off
what appeared to be tree-tops rising out of deep gulfs of snow; he
distinguished the very features of the persons and the look of their
particular distress.

"He awoke profoundly impressed by the distinctness and apparent
reality of the dream. He at length fell asleep, and dreamed exactly
the same dream over again. In the morning he could not expel it from
his mind. Falling in shortly after with an old hunter comrade, he told
his story, and was only the more deeply impressed by his recognizing
without hesitation the scenery of the dream. This comrade came over
the Sierra by the Carson Valley Pass, and declared that a spot in the
Pass exactly answered his description.

"By this the unsophistical patriarch was decided. He immediately
collected a company of men, with mules and blankets and all necessary
provisions. The neighbours were laughing meantime at his credulity.
'No matter,' he said, 'I am able to do this, and I will, for I verily
believe that the fact is according to my dream.' The men were sent
into the mountains one hundred and fifty miles distant direct to the
Carson Valley Pass. And there they found the company