With the aid of this computer-based concordance, the reader can easily locate specific areas of interest in Darwin's revolutionary work, The Origin of Species. Every word (except prepositions, etc.) is listed alphabetically and placed in the center of the page, accompanied by 10 to 16 words of the sentence in which the word occurs. Such topics as the roles of sex, of isolation, and of selection in the speciation process can be traced as Darwin developed these ideas in his evolutionary scheme. Names of all species, geographical locations, and people are indexed.

This concordance will enable scholars to relate Darwin's first book to his other works, and thus locate cross-references to any particular discussion. Specialists interested in Darwin's biographical, geological, paleontological, and behavioral contributions will find this volume of great value.