'Molecular Cloning, Fourth Edition' (IMAGE) Cold Spring Harbor Laboratory Caption The cover image shows an artist's impression of a genetic map of a bacterial plasmid. Credit ©2012 Cold Spring Harbor Laboratory Press 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.