(4) YA Twenty-first Century Medical Library series. The books in this series offer overviews of their subjects. Using mostly secondary sources, Billitteri's well-documented book largely succeeds in balancing the helpful potential of such therapies as naturopathy and spiritual techniques with the potential ineffectiveness and danger. Harris's largely undocumented volume describes symptoms, cause, treatments, and history. A few black-and-white photos illustrate the workmanlike prose. Bib., glos., ind. [Review covers these Twenty-first Century Medical Library titles: Alternative Medicine and Sickle Cell Disease.]

Reviewer: Frieda F. Bostian

(4) 4-6 Science of the Past series. Covering such subjects as Egyptian pyramids, Roman aqueducts, Arabic astronomy, and Chinese cosmology, these books present many achievements of these ancient cultures in somewhat of a random fashion, without much depth given to any particular topic. Nevertheless, the various inventions, theories, technologies, and other accomplishments give a sense of the sophistication of past cultures. Illustrated with color photos and reproductions. Bib., glos., ind.

Reviewer: The Horn Book, Inc.