Contents

28 September 1973
Vol 181, Issue 4106

About The Cover

Tattooing of monkeys in the first yeat of lige and regular census observations at the caribbean primate Research Center allow long-term family and social relationships and normal social behavior to be studied in free-ranging individuals after specific brain biochemical lesions. Unlike some of the treated female returned immediately to her infant and social group and theereafter appeared entirely normal. See page 1256. [D.E. Redmond, National Institute of Mental Health]