A Synopsis of Biology, Second Edition presents a critical review of general topics in the field of biology. This book is organized into eight sections encompassing 164 chapters that discuss the form and structure of living and non-living, as well as the physiology of organism and the environment. Considerable sections are devoted to the anatomy and physiology of the reptile, bird, mammal, and humans; study of the inorganic environment; evolution and heredity of the species; systematic classification of plants; production and cultivation of plant products; preservation, breeding, and cultures of organisms; and definition of epiphytes and climbers. Other sections deal with the dynamics and structure of inorganic compounds and the molecular structure and mode of action of drugs. The analysis of the natural system and the theory of evolution are presented. The remaining sections discuss the distribution of floras and faunas in space. These chapters also focus on the dermal excretion and thermo-regulation. The book can provide useful information to biologists, students, and researchers.