2 INTRODUCTION 



searches in his laboratory for the unknown mysteries 

 of living things, but twice honor to the scientist who 

 does this for the purpose of serving his fellow men. 



The great imperative call now going forth for 

 young men and women to go back to the soil brings 

 with it the responsibility to make life on the farm 

 worth living. Malaria is notably a disease of rural 

 districts. Many are responding to the call of ranch 

 life and many are the colonists who are pouring into 

 our fair valleys, and many are there who leave again 

 after a very short time. Those who are familiar with 

 the situation know very well that malaria is too often 

 responsible for the departure. 



California is noted for its healthful climate, and its 

 natural resources in this respect are tremendous. 

 Careful study and extensive travel in this vast empire 

 of the Pacific have impressed me with its wonderful 

 natural conditions conducive to good health, and the 

 conservation and protection of these health resources 

 is a problem of great moment. Malaria is a disease 

 not indigenous to our soil, nor to our sunshine, nor to 

 our luscious fruit, nor to the clear, cool waters that 

 flow from the Sierras ; it is an alien that has crept 

 in stealthily and has occupied the length and breadth 

 of these fair valleys. California is not the only state 

 that is suffering from this disease, but it is destined to 

 be foremost in the great crusade to banish malaria 

 from its boundaries. Natural conditions are favorable 

 for control, and the people once alive to the situation will 



