Patterson who was Head of the Department of Molecular Structure at the Institute of Cancer Research, Fox Chase, Philadelphia, died in November 1966. In a letter of 20 Oct. 1966, Hodgkin described Patterson as the person 'who had made the most difference to x-ray crystallographic studies after the initial discoveries in 1912-15 of x-ray diffraction and structure analysis'. In her opinion, his 1935 paper, 'A direct method for the determination of the components of interatomic…

Correspondence 1969-70 is with Patterson's widow re visit to Philadelphia to lecture. Correspondence 1980, 1983 is re A.L. Patterson award of the American Crystallographic Association.

'A.L. Patterson: Experiences in Crystallography - 1924 to date', 13pp typescript autobiographical account.

Pauling was an American theoretical chemist and biologist who received the 1954 Nobel Prize in Chemistry for his work on intermolecular forces. He was also awarded the 1962 Peace Prize. Includes 'The road to Stockholm' presented by the Chemistry and Biology Stock Company, 3 Dec. 1954, California Institute of Technology, Pasadena. This dramatic production marked the award of the 1954 Nobel Prize in Chemistry.

Pepinsky was based at the Alabama Polytechnic Institute, Auburn, and from October 1949 the Pennsylvania State College. He was a pioneer in the use of the electronic computer in the analysis of x-ray crystallographic data. Correspondence relates to research; visits. Includes 'tentative' programme for conference on computers and the phase problem in x-ray analysis, Pennsylvania State College, 6-8 Apr. 1950.

Perutz was the Cambridge x-ray crystallographer who was awarded the 1962 Nobel Prize in Chemistry jointly with J.C. Kendrew for their research into the structure of globular proteins. Includes 'Summary report on researches into the crystal structure of haemoglobin 1st July 1943 - 1st August 1944'.

Includes article on origins of molecular biology and review.

Includes reviews.

Undated correspondence and drafts. Includes untitled draft 'account of protein structure from the Xray side' and 'Enemy alien', Perutz's account of his Second World War experiences. Some of the correspondence is on headed notepaper from the 'Crystallographic Laboratory, Cambridge', 'Cavendish Laboratory, Cambridge' and 'Peterhouse, Cambridge'.

Phillips was based at the National Research Council, Canada and the Royal Institution, London before moving to Oxford in 1967 as Professor of Molecular Biophysics. Research and career.

Pope was based at the National Institute for Research in Dairying, Reading. Research; recommendation.

Prasad came from the Physics Department, University of Mysore, to work in the Chemical Crystallography Laboratory, Oxford, supported by a Commonwealth Academic Staff Fellowship. Arrangements to work in Oxford; letters of thanks.

Raistrick was based at the London School of Hygiene and Tropical Medicine. His first letter of 29 Oct. 1935 is addressed to Professor Robert Robinson at the Dyson Perrins Laboratory, Oxford. Correspondence relates to aurofusarin.

Ramaseshan spent a year in Hodgkin's laboratory, 1963-4, as a Senior Visiting Research Fellow. He then returned to India where he held a number of leading scientific positions including Director of Research, National Aeronautical Laboratory, Bangalore, and Director, Indian Institute of Science, Bangalore. Correspondence relates to visits.

Includes short tribute by Hodgkin on the occasion of Ramaseshan's 60th birthday.

1974-5 Correspondence re Randall's Royal Society memoir of Jean Hanson and in particular the history of the sliding filament mechanism of muscle contraction. Includes correspondence with H.E. Huxley (q.v.) and drafts of relevant section of memoir.

Rasmussen was based at the Department of Chemistry, Aarhus University, Denmark. He served for a term as General Secretary and Treasurer of the International Union of Crystallography.