MAN, A MAMMAL 329 



(1) the providing of man with sensation, by means of which he gets in 

 touch with the world about him; (2) the connection of organs in dif- 

 ferent parts of the body so that they act as a united and harmonious 

 whole; (3) the giving to the human being a will, a provision for thought. 

 Cooperation in word and deed is the end attained. We are all 

 familiar with examples of the cooperation of organs. You see 

 food ; the thought comes that it is good to eat ; you reach out, take 

 it, raise it to the mouth ; the jaws move in response to your will ; 

 the food is chewed and swallowed ; while digestion and absorption 

 of the food are taking place, the nervous system is still in control. 

 The nervous system also regulates pumping of blood over the body, 

 respiration, secretion of glands, and, indeed, every bodily function. 

 Man is the highest of all animals because of the extreme develop- 

 ment of the nervous system. Man is the thinking animal, and 

 as such is master of the earth. 



REFERENCE READING FOR THIS AND SUCCEEDING CHAPTERS ON HUMAN BIOLOGY 



ELEMENTARY 



Sharpe, A Laboratory Manual for the Solution of Problems in Biology. American 



Book Company. 



Davison, The Human Body and Health. American Book Company. 

 Eddy, General Physiology. American Book Company. 

 Hall, Elementary Physiology. American Book Company. 

 Clodd, Primer of Evolution. Longmans, Green, and Company. 

 Clodd, The Story of Primitive Man. Longmans, Green, and Company. 

 Ritchie, Human Physiology. World Book Company. 



ADVANCED 



Halliburton, Kirk's Handbook of Physiology. P. Blakiston's Son and Company. 

 Hough and Sedgwick, The Human Mechanism. Ginn and Company. 

 Howell, Physiology, 3d edition. W. B. Saunders Company. 

 Schafer, Textbook of Physiology. The Macmillan Company. 

 Stewart, Manual of Physiology. W. B. Saunders Company. 

 Verworn, General Physiology. The Macmillan Company. 



