Rare 1955 Program for the ‘United Nations International Conference on the Peaceful Uses of Atomic Energy’ Geneva 8-20 August 1955. This program has Thoma Mees van't Hoff Snyder’s name written on the outside ‘Snyder’ and he wrote in it.

Snyder was involved with the Manhattan Project. He worked on the nuclear bombs of World War II. He later worked for a nuclear energy company. See more info below about Snyder.

Overall the conference program is in good condition. Snyder made notes in the program. See photos for example.

His grandfather was Jacobus Henricus van't Hoff, winner of the first Nobel Prize in chemistry in 1901 for his work on the relationship of volume, pressure and temperature in gases, which is known today as van't Hoff's Law.

Professor Snyder was a nuclear physicist who played a key role in the development of the atomic bomb and was later a leader in the postwar development of nuclear fuel. In 1943, Professor Snyder was recruited by Edward Teller and Edwin McMillan to join the Los Alamos nuclear weapon development project. During this period, he was the first to measure the number of neutrons emitted per fission of U-235 and helped develop a method for making a mock-up of a nuclear weapon, using nonfissionable materials. This method led to considerable improvement in weapon design. In 1945, he designed a telemetering system to measure the explosion rate during the first nuclear detonation. He participated in the first atomic bomb test at Alamogordo, N.M.

A brilliant student, he was accepted directly into the doctoral program in physics at Johns Hopkins University and joined the physics faculty at Princeton University at age 24.

The next year, he measured the neutron capture in uranium and uranium oxide spheres in graphite that served as the basis for the design of the first nuclear reactor built for the Manhattan Project.

After the war, Professor Snyder left Los Alamos to join the General Electric Research Laboratory in Schenectady, N.Y. There, he had various staff and managerial responsibilities for the design of power breeder reactors as well as for the submarine reactor that led to the construction of the nuclear-powered submarine, Sea Wolf.

He was also a frequent adviser to the Atomic Energy Commission and was appointed chairman of the AEC Reactor Physics Planning Group in 1954.

Three years later, he became manager of physics at the Vallecitos Atomic Laboratory near Livermore. In 1964, Professor Snyder became consultant to General Electric's research and energy programs and continued in that capacity until his retirement in 1984.

He was also a fellow of the American Nuclear and American Physical Societies, and a member of the advisory board of the Atoms For Peace Conference.