Show RAISING WHITE RATS IS INDUSTRY PHILADELPHIA Jan By 7 7 ByThe The Associated Press One Press One of oC th most tir-most most unusual Industries for Cor which Philadelphia ha has become the cen- cen center cen center ter 1 Is ii that of oC propagating white At AI At the Wistar institute of oC anal anat anatomy omy olny and bi of the Uni nl University of Pennsylvania equipment costing Is 18 maintained and anda a staff taft of t f several men Is required to care for Cor the rodents I They are valued for Cor scientific I and research work because of or the thc similarity of oC heir structure growth and digestive to these or of man Started for the purpose of oC sup sup- supplying sup supplying plying the Wistar Institute the In- In Industry industrY In Industry has hits expanded until Phila Phila- Philadelphia Philadelphia delphia now Is the most Import Import- Important ant rat raising center anywhere and the Institute Is called upon to 0 supply rodents for tor other othel scientists In this country and abroad |