The field of genetic toxicology has gone through remarkable development in the seven years since the appearance of the first edition of Principles of Genetic Toxicology. One branch of toxicology research, chemical mutagenesis, has been elucidated and expanded as a result of increased effort, testing, and the sharing of data. This expansion has occurred not only in the industrialized countries, but also in countries that are comparatively less advanced in scientific implementation. These developing countries have taken advan tage of the basic practical methods that were so well described in...

The field of genetic toxicology is a relatively new one which grew out of the studies of chemical mutagenesis and modern toxicology. Considering that systematic practices to detect chemical mutagenesis are only a little over thirty years old, this field has evolved very rapidly with an abundance of methods for identifying chemical mutagens. To evalulate the usefulness of the methods and to select the assay which will yield the most important information under practical conditions requires the broad experience such as that which Dr. Brusick has acquired over the last decade. Since this field...