Gr 5-8-Concise, yet detailed presentations about two 20th-century scientists. Students will appreciate the easy-to-read layout that includes numerous black-and-white photographs. Comprehensible narratives describe how the individuals achieved their accomplishments, despite many hardships. Allison covers the life of a Nobel Prize-winning scientist about whom little has been written for this audience. Today, new techniques using Alvarez's bubble chamber allow scientists to provide better environmental monitoring and assurance of drug quality. This book provides a more detailed presentation than Corinn Codye's Luis W. Alvarez (RSVP, 1990; o.p.). Bankston does a fine job of presenting the many ups and downs in the life of one of the 20th century's best-known scientists. However, John Severance's Einstein: Visionary Scientist (Clarion, 1999) offers a more engaging and thorough presentation of the genius. These solid additions include just enough of each individual's personal travails and angst to keep readers interested.-Maren Ostergard, Bellevue Regional Library, WA Copyright 2003 Cahners Business Information.