Written accounts of material presented in the course on Museum Security, the Seminar in American Culture, Cooperstown, N.Y., July 13-18, 1964. Contents: Physical Security by Joseph Chapman. Insurance by Huntington T. Block and John B. Lawton. Environmental Security by Nathan Stolow. Light and its Effect on Museum Objects by Nathan Stolow. Other Security Factors and Some Practical Advice by Caroline K. Keck. Lighting Definitions and Notes on Portable Fire Extinguishers are given in the Appendices. Selective Bibliography.