Show Measuring Efficiency of Cow v Is the Latest Task Electricity's latest task Is a boon to the dairy Industry In the laboratories labora tories of the College of Agriculture University of California at On Davis OnIs Is Calif there has Just been completed a respiration chamber In which h the output Input-output efficiency of a cow may maybe maybe be tested electrically In fact provisions pro pro- visions are ure made for tests on two cows at one time The animals are provided ed with comfortable com corn stalls in tight air chambers and und are fe fed J watered milL milked J and anti cleaned un under tinder Jer careful laboratory con con- The feed Is weighed the water wa vater va- va ter tel Is analyzed and the air In the chambers Is cooled and humidified Attendants who enter the chamber at 11 regular Intervals must pass through h han an air tock flock auxiliary chamber to prevent prevent pre pre- vent air alt leakage The breathing of the animals Is measured by an elaborate mechanical cal lung device caled an aspirator designed an ant and J built by Doctor on the staff starr of the lie college A classi- classi tier Her In the basement un under Jer the respiration respiration ration chamber separates the waste products The entire equipment Is about three times the size of a large motor 1 us I and It cost nearly three times as much |