With this January 1973 issue of the American Journal of Diseases of Children, Gilbert B. Forbes, MD, Professor of Pediatrics and Professor of Radiation Biology and Biophysics at the University of Rochester School of Medicine assumes the responsibilities of Chief Editor. He brings to the position talent as a writer, experience as an editor, and stature in the world of pediatrics. These are strong statements but to document is easy. At my elbow is an impressive bibliography with well over 100 entries. The titles of papers disclose a wide range of interest in the problems of pediatrics—pneumothorax, chylothorax, pyloric stenosis, salicylate intoxication, management of severe infections, glycogen storage disease, scarlet fever, and poliomyelitis. Rigidly scientific are his clear expositions of isotope methodology used to determine body composition with respect to bone, fat, lean mass, water, and electrolytes. Especially refreshing are his contributions to a series of papers published in the