34 REPORT OF OFFICE OF EXPERIMENT STATIONS. 



As a part of the rejrulnr work in nutrition, abstracts of the cur- 

 rent literature on the general subjects of physiological chemistry and 

 nutrition have been j^rcpared for the Experiment Station Tiecord, 

 as well as popular summaries, particularly of work carried on at the 

 American exi^eriment stations, for pul)lication in the series of Farm- 

 ers' Bulletins entitled " Experiment Station "Work." 



As has been the case for many years, many requests for information 

 along nutrition lines have been received from Members of Congress, 

 teachers, institution managers, home makers, and others. The work 

 connected with nutiition investigations, as heretofore, has been in 

 charge of Dr. C. F. Langworthv. 



IRRIGATION INVESTIGATIONS. 



The irrigation investigations of this Office continued during the 

 year 1909 along the same general lines as before, under the direction 

 of Samuel Fortier as chief. 



The great activity in the extension of irrigation works, noted in 

 previous reports, has continued in full force, if it has not increased. 

 During the last two years this Office has been preparing and i)ubli.sh- 

 ing a series of reports on irrigation in the several arid States and 

 Territories, these reports being prepared by the state and territorial 

 engineers where there are such officials, and by other local men where 

 there are no engineers. Most of these reports contain statements of 

 the areas under ditch, but not irrigated, although some do not. The 

 following table, showing the areas under ditch, but not irrigated, is 

 compiled from those reports and from correspondence with well- 

 informed persons in the several States. The names of all the arid 

 States and Territories are included in the table in order to call atten- 

 tion to the area not covered by the total. 



Areas vndcr ditch, hut not inigatcd, WOS. 



Acres. 

 Arizona 



California 1, 375, 000 



Colorado S.SO, 000 



Idaho 1, 3.3G, 600 



Kansas 50,000 



Montana 



Nebraska 500, 000 



Nevada 



New Mexico 100,000 



North Dakota 



Oklahoma 



Oregon .380, 000 



South Dakota 



Texas 861. 000 



Utah 100,000 



Washington 200,000 



Wyoming — 



Total 5, 682, 600 



