School Children Help In Polio Fight - Busy with the job of counting and recording money turned in by Ann Arbor schools for the March of Dimes drive are Mrs. Lloyd N. Cody, school dime card chairman; Miss Helen M. Platt, Ann Arbor dime card treasurer; Miss Katherine E. Harrington, principal of Northside School; Dick Hardy, Burns Park School service committee chairman; and Miss Marion Cranmore, Burns Park Principal. The cards were collected yesterday. A report on the school collection is not yet ready, but incomplete returns in the city-wide drive total $10,238 to date.