314 Twelfth Annual Report. 



ment Station has endeavored in various ways to make its work of 

 educational value to the public, although not itself responsible 

 for results along this line. 



The field operations at the Station farm, in the date orchard, 

 and with sugar beets, together with the explanations of those in 

 charge, have afforded excellent object lessons to numerous visi- 

 tors. 



The publications of the Station, also, are full of reference to 

 those principles of. agricultural science involved in the subjects 

 treated; and the Timely Hints especially, distributed every two 

 weeks for nine months of the year, serve as lesson sheets for a 

 class of some 3000 Arizona readers. 



In order to afford a more systematic and complete course of 

 reading than the Station publications afford, a carefully se- 

 lected library of books and papers, giving a fairly complete treat- 

 ment of farming in the various departments, was offered at cost 

 ($2.91) to those who desired. Small response to this opportun- 

 ity was made, but it is believed that experience will greatly im- 

 prove this branch of service. 



Institute work, which last year's experience proved highly 

 desirable in many localities, was crippled this year for want of 

 traveling funds. On a few occasions the Station staff has as- 

 sisted on agricultural programs, but could be much more useful 

 with sufficient means to travel. 



PERSONAL. 



The Station staff, with one exception, remains the same as 

 during the year. Dr. David Griffiths, botanist, after remaining 

 nine months, followed his predecessor to the U. S. Department of Ag- 

 riculture, and has been succeeded by Professor John J. Thornber, 

 whose study of problems relating to range reclamation in Neb- 

 raska should enable him to continue this important line of botan- 

 ical work in Arizona with little interruption. 



SCIENTIFIC INVESTIGATION. 



The year's investigations have followed the lines laid down 

 two years ago. The department of chemistry has nearly com- 

 pleted an extensive study of the irrigating waters of the Terri- 

 tory — a studv the inferences from which relate to the future of 



