'Outline of Science, Vol 2' Summary

The Outline of Science is a four-volume work that provides a comprehensive overview of the scientific knowledge of the early 20th century. Volume 2 covers microscopy, the human body and mind, and the natural history of birds, mammals, and insects. The book begins with a discussion of microscopy, which allows us to see objects that are too small to be seen with the naked eye. This has led to a greater understanding of the structure and function of cells and tissues. The book then goes on to discuss the human body and mind. It covers topics such as the nervous system, the circulatory system, the respiratory system, and the digestive system. It also discusses the senses, the emotions, and the intellect. The final part of the book is devoted to the natural history of birds, mammals, and insects. It covers topics such as the evolution of these animals, their behavior, and their habitats. The Outline of Science is a valuable resource for anyone who wants to learn more about the scientific knowledge of the early 20th century.