"Black Spirits and White" is not a book by Ralph Adams Cram. However, Ralph Adams Cram (1863-1942) was an American architect and writer, known for his contributions to Gothic architecture and his interest in supernatural fiction. One of his notable works in the latter genre is "Black Spirits and White," a collection of short stories.

Published in 1895, "Black Spirits and White" features a series of supernatural tales that explore themes of the occult, the mysterious, and the eerie. Cram's writing is often atmospheric and gothic, reflecting the late 19th-century fascination with the supernatural.

The stories draw on elements of horror and the macabre, and some of them delve into the psychological aspects of fear and the unknown.

Cram's contributions to the horror and supernatural fiction genre were part of a larger literary movement during his time, and "Black Spirits and White" stands as a representation of his interest in exploring the darker aspects of the human psyche through the lens of the supernatural.