National Geographic : 1939 Feb
( INational Ceographic society SONOMA ROUNDS UP THOSE WHO FORGET IT'S RODEO DAY Citizens achieve much merriment-and publicity-by corralling those who won't "play ball." A newspaper editor at the extreme right needs little make-up other than his long coat to impersonate Lincoln. JJutaycolor rnotograpns byB.Anthony Stewart "FIRST EDITIONS" ROLL FROM AN INCUBATOR This mechanical "setting hen" atPetaluma "mothers" 9,300 eggs at a time. Keeping even temperature and humidity, itturns the eggs regularly, and deposits the hatched chicks inatray atintervals ofthree orfour days.