"Contributions to the Theory of Natural Selection: A Series of Essays" is a collection of works by the famous British naturalist and anthropologist Alfred Russell Wallace. In this book, the author explores the processes of natural selection in nature, highlights his unique observations regarding the evolution of the organic world. With an analytical approach and objectivity, Wallace examines key aspects of Darwin's theory and complements them with his own ideas and research. This book will provide the reader with an opportunity to deeply understand natural selection and its role in the formation of modern living organisms.