This book is an approachable and entertaining introduction to the study of human physiology, designed specifically for children and young people. With engaging illustrations and clear language, Lydia Folger Fowler helps young readers understand how the human body works and why it is important to take care of it. This book is a great resource for parents, teachers, and anyone who wants to learn more about the fascinating science of physiology. This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "public domain in the United States of America, and possibly other nations. Within the United States, you may freely copy and distribute this work, as no entity (individual or corporate) has a copyright on the body of the work. Scholars believe, and we concur, that this work is important enough to be preserved, reproduced, and made generally available to the public. We appreciate your support of the preservation process, and thank you for being an important part of keeping this knowledge alive and relevant.