The Body -Machine and Its Work 361 



cal ideal is bodily health ; its essential correlate is healthy-minded- 

 ness. No doubt the invalid may have a vigorously healthy mind 

 and the athlete a mind diseased, but, on the average, the two 

 aspects of health must develop together. Hence the importance 

 of mental dieting, mental gymnastics, mental rest, mental play, 

 mental stores ; though these must be sought as ends in themselves, 

 not as aids to digestion ! 



BIBLIOGRAPHY 



BAYLISS, W. M., Principles of General Physiology (1915). (A more advanced 



book for students, a standard work.) 

 FOSTER AND SHORE, Physiology for Beginners. 

 HARRIS, D. FRASER, Nerves (Home University Library). 

 HILL, ALEXANDER, The Body at Work. 

 HUXLEY, T. H., Elementary Lessons in Physiology. 

 KEITH, SIR ARTHUR, The Engines of the Human Body (1919). 

 KEITH, SIR ARTHUR, The Human Body (Home University Library). (A very 



interesting little book on the history of the human body.) 

 McDouoALL, W., Body and Mind (1911). 

 McKfiNDRicK, J. G., Physiology (Home University Library). 

 POPE, A. E., Essentials of Anatomy and Physiology (1922). 

 THOMSON, J. ARTHUR, The Control of Life (1921) ; and Secrets of Animal Life 



(1919). 



