Dr. John C. Snyder announced last Sunday that he will resign as Dean of the Faculty of Public Health on June 30 and devote his remaining five years at Harvard to studying problems in population and the prevention of infectious disease.

Snyder, who has headed the Faculty of Public Health since 1954, was the first dean appointed by President Pusey. He will stay on at the School of Public Health as Walcott Professor of Public Health.

In the announcement of his resignation, Snyder called the population problem, along with the control of nuclear weapons, the "major concern of our civilization."

Under Snyder's leadership the faculty of the School of Public Health doubled in size, with endowed professorships increasing from one to 12. The School's endowment rose fourfold to more than $24 million and the annual budget more than six times to its current level above $8 million.

In 1962 Snyder chaired the nation's first department of population studies atHarvard. In 1964, he appointed Roger R. D. Revelle to head the newly-established Center for Population Studies.

Revelle last night called Snyder "the first leader in the public health profession to take with great seriousness the problems of unprecedented human population growth... and to try to do something about it.

"Jack Snyder has shown both great imagination and profound dedication to human welfare," Revelle said.

Jean Mayer, professor of Nutrition, said that "Dr. Snyder will certainly be remembered as a builder."