ic,i7 



BETTER FRUIT 



Page 25 



ZEROLENE 



iheSianJarJOtliorMoior Cars 



ENDORSED BY PEERLESS MOTOR COMPANY— 



because their technical department was "able to secure uni- 

 formly better results with Standard Oil Company's Zerolene 

 motor lubricant than with any other." 

 That's because Zerolene is correctly refined from asphalt- 

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Less wear and more power because Zerolene keeps its lubri- 

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 Zerolene is the oil for your car. 



For sale by dealers everywhere and at our Service Stations 



STANDARD OIL COMPANY 



iCAUFORNIAl 



A Note to Legume Growers 



State Agricultural Experiment 



EXPERIENCE in the growing of 

 leguminous crops, — peas, alfalfa, 

 vetch, clover, etc., shows that these 

 crops make far better returns when tlic 

 soil contains the bacteria which cause 

 nodule formation upon tlie roots of the 

 plants. These bacteria living in the 

 nodules lake the free nitrogen from the 

 air, which as such cannot he assimi- 

 lated by the i)lants, and combine it into 

 such a form that it can be utilized. In 

 this way, nitrogen, which is so essen- 

 tial for crop production, and yet is so 



Station, Pullman, Washington 

 expensive to purchase in the form of 

 fertilizer, is obtained in very appre- 

 ciable (piantilies from the air with- 

 out cost. 



Progressive farmers arc beginning to 

 realize the importance of these facts. 

 It is well worth while to see to it that 

 the land upon which these crops are to 

 be grown contains these bacteria, and 

 unless these crops have been grown 

 successfully, soil inoculation should 

 always be practiced. This may be 

 done in several ways. One method is 



to take the soil from fields where the 

 particular legumes have been success- 

 fully grown and to distribute it over 

 the Held to be treated. If this method 

 is used the soil should be worked in 

 immediately since if exposed to the sun 

 the bactei-ia will be weakened. Owing 

 to the fact that weed seeds and various 

 plant diseases are readily spread in this 

 way, this method should be practiced 

 with caution. By far the best way to 

 get the desired results is by the use of 

 pure cultures. 



There are to be had upon the market 

 various coiuniercial products which are 

 advertised to contain the nodule-form- 



