This useful book is a manual of morphologic and quantitative micro-methods for inorganic, organic and enzyme constituents in biologic materials. It is divided into 4 parts: microscopical technics, chemical technics, microbiologic technics and mechanical separation of cellular components. The opening section on microscopical technics differs from standard references on histologic methods: The portion on fixation and imbedding is devoted to a modification of the Altman-Gersh freezing drying technic. The remainder of this part of the book deals with methods aimed at visualizing various inorganic, organic and enzyme constituents of tissues by known chemical and physical procedures.