Carnegie's Allan Spradling (IMAGE) Carnegie Institution for Science Caption Allan C. Spradling, Director Emeritus of the Carnegie's Department of Embryology, has been awarded the 23rd March of Dimes and Richard B. Johnson, Jr., MD Prize in Developmental Biology. Credit Carnegie Institution for Science Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.