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Series of glass 16” by 12” (40 x 30 cm) plate slides of x-ray diffraction images of DNA and RNA relating to research conducted in the Medical Research Council (MRC) Biophysics Research Unit, King’s College London (from 1964, King’s College London Department of Biophysics). The images of DNA, RNA and nucleoproteins date chiefly from the early 1960s some are captioned with reference number, exposure time and type of sample used. Some glass plates have an additional attached plastic sheet marked with co-ordinated of the diffraction pattern.

Series of acetate and glass slides of x-ray diffraction images of DNA and RNA created in the Biophysics Unit and subsequently Department of Biophysics, and of RNA, created in the Department of Biophysics, arranged according to medium (including sodium, lithium and potassium), sample origin (including calf thymus, human and mouse), and structure (‘A’, ‘B’ or ‘C’ type)

Glass and acetate 3 1/4”x 4 1/4” (8.5 x 11cm) slides (‘quarter plates’) of images relating to the research conducted in the Medical Research Council (MRC) Biophysics Research Unit, King’s College London (from 1964, the Department of Biophysics). Images include: x-ray diffraction photographs of DNA; graphs and other interpretations of the data obtained from the diffraction photographs, including Fourier transforms, Bessel wave functions, and diagrams and space-filled models of the structure of DNA; x-ray cameras and other cameras, reflecting microscopes and electron microscopes, and other equipment used in the course of DNA research; images relating to the work of the Muscle Group, under (Emmeline) Jean Hanson, researching the structural basis of muscular contraction; illustrations prepared for scientific journal articles and lectures by Unit staff. Slides are individually numbered in a chronological sequence. See KDBP/2/1-5 for indexes to the slides

Uncaptioned photographs relating chiefly to the staff and premises of the Biophysics Unit/Department of Biophysics, including: exterior views of the construction of the new Wheatstone Physics Lab in the basement of the main King’s Building, Strand Campus, c 1950; a staff cricket match, c 1952; photographs of Raymond Gosling, Rosalind Franklin and John Randall; Christmas decorations featuring photographs of staff superimposed onto DNA space filled models, with Maurice Wilkins as an angel and John Randall as Father Christmas, photographed next to press cuttings relating to Wilkins’ Nobel Prize award, 1962; exterior views of the building at 26-29 Drury Lane and the progress of internal refurbishment work, c 1963; new laboratories at 26-29 Drury Lane, showing staff and equipment, c 1964; Queen Elizabeth the Queen Mother at the formal opening of the Drury Lane biophysics laboratories, 1964. Two micro-negative reels of photographic film, c 1975, showing teaching in an unidentified classroom and an unidentified building exterior. Also 15 glass negatives with related photographic prints, possibly for teaching on the history of science, including images of the biophysics laboratories, equipment and staff, and space filled models of DNA. Mounted photographs (5 items) for a display on the Drury Lane laboratories, including exterior views of the building in 1963 and 1992

Photographic prints, some captioned, relating to DNA research, including: x-ray spectrometer diffraction patterns and x-ray diffraction images. Captioned images include ‘Neg 95 calf thymus DNA’ (taken by Herbert Rees Wilson, Nov 1954), and ‘8826 Wilkins B –A’ (taken by Struther Arnott, Oct 1967)

Photographic prints, some captioned, including: x-ray spectrometer diffraction patterns; x-ray diffraction images; an x-ray camera in a laboratory; model and diagram of the DNA double helix. One x-ray diffraction print, numbered 363, is incorrectly captioned ‘Gosling/Franklin Plate 51 with silver camera with a specimen that had shown A’: according to the indexes to the Biophysics slides image 363 is of ‘Li DNA, showing the 20th layer line’, taken by Maurice Wilkins, Dec 1960

The prints are uncaptioned, but numbered with the series numbers used in the ‘quarter plate’ series of glass 3 1/4” x 4 1/4” (8.5 x 11cm) slides (see KDBP/1/1) and related index books (see KDBP2/1-5). Contents include x-ray diffraction images, microscope images, graphs, diagrams and equipment used, some possibly prepared for use in published articles and as teaching aids

Photographic prints relating to the research of the Biophysics Muscle Group, including x-ray diffraction images, images of mollusc muscles, microscopes used, molecular diagrams relating to the protein actin in muscle cells, and model configuration diagrams. Original file titles ‘Muscle Group 2, 3 6 and 7’