A new seven‐storyphysics research building has recently been occupied by the Kodak Research Laboratories in Rochester, N.Y. Its 200 000 square feet of floor space provide room for the work of about 400 persons and include over 200 special rooms for research in such fields as the theory of the photographic process, image structure, optical systems, sensitometry, radiography, sound recording, electrostatics, and solid‐state physics. Special features include an optical penthouse on the roof for use in long‐range photography and solar‐radiation work and a temperature‐controlled underground lens tunnel measuring 160 feet long, ten feet wide, and ten feet high.