A handbook in three main parts: 1. An outline of the basic physics and principles of x-rays, techniques and the developing of x-ray films, including a useful comparative absorbtion table of some 50 pigments and x-rays showing the characteristic patterns produced by different types of wooden supports, 2. A description of the x-ray apparatus used, 3. Some dubious information, thereviewer feels, mentioning an incorrect diagnosis of the craquelure in Leonardo's <i>Annunciation. This part of the book contains Mucchi (Ludovico)'s photo-radiographic atlas and illustrates x-rays of paintings ranging fr om the 13th century to Picasso and covers mummies, polychrome sculpture, ceramics and bronzes. -- AATA