Physiology

A clear elementary primer that presents the fundamentals of human and comparative physiology through straightforward descriptions and illustrations. It begins with external form and internal anatomy, showing body cavities, the skeleton, and the arrangement of organs by means of simple dissections. Subsequent chapters explain major functions—circulation, respiration, digestion, excretion, and nervous coordination—always relating structure to function. The author emphasizes hands-on observation and elementary experiments, encouraging study of specimens and charts. Labeled plates and concise explanations aim to help beginners identify organs and understand how tissues and systems work together to sustain life.