The manual consists of two main sections. The first includes the essential, sometimes laborious, procedures for handling yeasts, for inducing mating and isolation of hybrids, for inducing sporulation and isolation of single-spore clones, with some details of tetrad analysis, and including techniques and ancillary equipment for use of the micromanipulator. There are also proce dures for induction of mutants by physical and chemical agents, and for iso lation of particular types of mutants, such as to temperature sensitivity, for increased frequency of mutations, for mutations in the...