THE IRRIGATION AGE. 



73 



(Continued from page 66.) 



salts, and 236,000 tons of Epsom salts. The mud and silt 

 carried in suspension by this river amount to 1,100,000 

 tons. Milk river at Havre, Mont., discharges annually 

 41,000 tons of soda. Payette river, in Idaho, discharges 

 46,000 tons; Salt river at Roosevelt, Ariz., discharges 288,- 

 000 tons of salt and 170,000 tons of Epsom salts; and the 

 Rio Grande discharges 245,000 tons of lime and 368,000 

 tons of Glauber's salts. 



The foregoing are a few of the figures of incidental 

 interest presented by Water-Supply Paper 274 of the 

 United States Geological Survey, entitled "Some Stream 

 Waters of the Western United States." The work re- 

 ported by this volume is, however, of higher practical 

 importance than the above statement would indicate. It is 

 the result of an investigation of the quality of western 

 stream waters made for the purpose of determining their 

 availability for use for irrigation and other purposes. For 

 a water-supply system the quality of the water available 

 determines its usefulness quite as much as the quantity. 

 Some waters contain ingredients that make it impossible 

 to use them for irrigation unless certain precautions are 

 taken in applying them to the land and in draining them 

 off. Certain ingredients in water make it unavailable or 

 destructive if used in boilers and the quality of water 

 used in a manufacturing plant may very largely determine 

 the quality of the product of manufacture. The report 

 just published therefore cannot fail to be of material 

 value to the manufacturing and agricultural interests of 

 the West; and the proper consideration of the information 

 that it contains will prevent many costly mistakes in con- 

 nection with the industrial development of that part of 

 the country. 



A copy of this report may be obtained free on appli- 

 cation to the Director of the United States Geological 

 Survey, Washington. D. C. 



RIFE RAMS 



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If there is a stream, pond or spring within a 

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Combination HeadgateM Measuring Device 



IT remained for the U. S. Irrigators' Supply Company to combine the accuracy of the Weir with 

 the simplicity of the Miners' Inch Box, the merits of the meter with the needs of the farmer, to con- 

 form to the statutes of the different states as to the Miners' Inch and Second Foot, to take the ac- 

 curacy of all measuring devices and to simplify them so the farmer can use them and know he is accurate. 

 Our device is accurate enough for the most exacting engineer. It meets the requirements of the 

 law ; it meets the needs of the farmer. It gives a uniform system of measurement. 



It is a headgate and it measures correctly. It 

 is locked and no one can raise or lower it. It 

 gives the farmer the power to shut off the water 

 at any time he does not need it. It meets 

 the needs of the individual, the community, or 

 the irrigation system. It is the cheapest and 

 best device. It is up-to-date. 



It sounded the death knell of the water thief. 



Its simplicity is the result of the needs of the 

 farmer. Its accuracy is the result of the work of 

 scientific, painstaking, competent engineers. 



It is approved by Senators, Judges, Engineers, 

 and Farmers. It is adopted by Communities, 

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 adopted by all the states as the Standard of 

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 is used by hundreds of Montana Farmers, and 

 we have our first complaint to to hear. 



If you are interested in irrigation or the measurement 

 of water, just WRITE or WIRE your needs to 



D. S. Irrig'ators' Supply Company 



Home Office: Montana Block, Missoula, Mont. 



When writing to advertisers please mention The Irrigation Age. 



