GENERAL SCIENCE 



I. SOME LESSONS ON THE HUMAN BODY 1 



INTRODUCTION 



We expect a surgeon to have an intimate knowledge of 

 human anatomy, and a physician to be skilled in human 

 physiology. But enough of the anatomy and physiology 

 of the human body should be taught in schools so that in- 

 struction in hygiene as a study of health conditions will be 

 better understood by every one, and its teachings better 

 observed. The importance of an understanding of health 

 conditions, and of their control, is emphasized in the lessons 

 that follow, as are the relations between good health and 

 the happiness of mankind. The lessons on the Hand, 

 Mouth, and Eye are given because of the peculiar usefulness 

 to man of these important organs of his body. No one 

 should be ignorant of their structure and uses and care. A 

 large part of the knowledge of the world around us is gained 

 through the eyes and hands, and life's activities are largely 

 dependent upon their services. Then, too, the progress of 

 man in civilization and much of his enjoyment is intimately 

 associated with oral speech in which the structure of the 



1 In Zoology as a study of all forms of animals, including human beings, 

 anatomy deals largely with the structure of the body, while physiology has to 

 do with the activities of the various organs. Botany as a study of plants 

 likewise has its subdivisions of anatomy and physiology. Biology is the 

 science of living bodies, and includes both Botany and Zoology. 



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