Dr. Mones Berman, 61, a physicist and laboratory chief with the National Institutes of Health's National Cancer Institute since 1958, died of cancer Aug. 12 at the NIH clinical center. He lived in Bethesda.

Dr. Berman was a native of Lithuania. He came to this country in 1938 and settled in New York. He was a graduate of the old Cooper Union College in New York City and earned his doctoral degree at the old Brooklyn Polytechnic Institute. He served with the Army in Europe during World War II.

He was a physicist with the Sloan-Kettering Institute in New York City from 1946 until 1958.

Dr. Berman moved to Bethesda in 1958 when he joined the NIH staff as a senior scientist. He became chief of the laboratory of mathematical biology in 1972. He helped develop a mathematical approach, called "modelling," for analyzing biological systems. He received the Department of Health and Human Services' Senior Executive Service Award earlier this year.

He was a member of the board of directors of the NIH Foundation for Advanced Education in the Sciences and the Linden Hill Tennis Club in Bethesda.

Survivors include his wife, Charlotte of Bethesda, and two daughters, Joyce Berman of Takoma Park, and Connie Berman of Barnet, Vt.