The summer's work will be professedly experimental 

 in character. There is no hope of destroying the dis- 

 ease this summer ; that would be impossible. The work 

 of extermination will require many years of determined 

 and continuous effort. All that we can hope for at the 

 end of the season is a fairly definite idea of whether 

 there is a fair chance of success. If there is such a 

 chance, the state should be asked to contribute gen- 

 erously in order to push the campaign in the most thor- 

 ough manner. Success would be well worth almost any 

 price. If that chance of success does not exist, that 

 fact should be acknowledged as soon as known and not 

 another cent spent in a hopeless fight except, possibly, 

 on experiments in local control. 



BUILDING THE CAVALRY OF 

 THE AIR 



By O. K. JEFFERY. 



(Mr. Jeffery is building airplanes in Portland, having one of the very few 

 factories of this kind in the West.) 



IF the statement that the airplane will win this war 

 is questioned, the fact that it w r ill be one of the es- 

 sential factors in winning is indisputable ; but in either 

 event the huge task of building this army of the air 

 remains to be accomplished by the United States. The 

 airplane program, as far as actual warfare is concerned, 

 is just starting, for the government has, for the most 

 part, been building only the training type for teaching 

 our aviators to fly in this country. 



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