The book "The Dawn of Reason; or, Mental Traits in the Lower Animals" by James Weir, Jr. is a well-known study of the mental faculties of the lower animals. This work sheds light on various aspects of animal behavior, their instincts, ways of interacting and perceiving the world. The author offers readers a deeper understanding of the intellectual capabilities and mental processes of various species of animals, paying attention to the striking differences and similarities with human traits. "The Dawn of Mind; or, Mental Traits in the Lower Animals" is a valuable resource for those interested in the relationships between different forms of life and their mental capacities.