144 THE INVISIBLE WORLD 



poison which the enemy is pouring into your blood. 

 Eat nourishing, wholesome food all you can 

 digest and assimilate. It will help sustain and 

 build up what the foe is tearing down. Take daily 

 exercise in the open air; it will tend to revitalize 

 and tone up a system wasting by disease. Withal, 

 take regular and good hours of sleep; it will re- 

 store wasted energy and keep you well armed 

 bravely to continue the battle. 



With such means, " Hold the fort." Never give 

 up. Conquer and expel the foe. Life, health, 

 years of happiness shall be your reward. 



