'These appliances, measuring the metabolism of animals on the other side of the 

 partition, told laboratory technicians the exact difference in feeding value of 

 earlx and late cut hay. This sensitive apparatus measures, to one part in a 

 hundred thousand, the volume of air and the percentage of its oxygen and 

 carbon dioxide after it is drawn out of the air-tight chamber 



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 Results of the research on early cut hay, explained bv the county agents to 

 farmers, have put forward the state's haying clock by two weeks 



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