'Crystallographic measurements on the antipernicious anaemia factor' (with M.W. Porter and R.C. Spiller), Bibliog. 49, 1950. 7pp. typescript, with manuscript additions and corrections by Hodgkin. 7pp. manuscript draft. 1p. typescript notes re 'crystal morphology'.

'On the Molecular Structure of Vitamin B12' (in collaboration), 8pp. typescript, latest bibliographical reference 1953. Not listed in Bibliog. under this title but may be an earlier version of Bibliog. 59. 'The Crystal Structure of Vitamin B12 - Part I' (with J.M. Broomhead), 2pp. typescript, n.d. Not listed in Bibliog. 'The X-ray crystallographic study of the structure of Vitamin B12', 2pp. typescript, n.d. Not listed in Bibliog. Untitled 2pp. manuscript...

'Conversion of Vitamin B12b into Vitamin B12', by V. Petrov et al., 3pp. typescript, latest bibliographical reference 1950. 'A crystalline nucleotide-free degradation product of vitamin B12', by A.R. Todd et al., 5pp. typescript, latest bibliographical reference 1954.

Shorter manuscript and typescript drafts, manuscript notes, data and calculations, manuscript notes from the literature. Some pages dated 1948-9.

X-ray photographs and film, 1948; photographs of crystals; figures.

Manuscript data, not all by Hodgkin. Includes 'Structure factors', 'B12 CNS', 'Forbhkoocb values', 'Sign determination', 'Asymmetric synthesis', 'okl reflections, 'Density of Factor A', 'Red fragment formula', computer printout. Some pages dated 1952.

Correspondence Includes abstract of report by Clara Brink, International Fellow 1951, re x-ray analysis of vitamin B12.

Correspondence

'On the Molecular Structure of Vitamin B12' (in collaboration), latest bibliographical reference 1953. Not listed in Bibliog. 6pp. manuscript and typescript draft, with manuscript additions and corrections by Hodgkin and J.H. Robertson.

'The X-ray Crystallographic Study of the Structure of Vitamin B12', published in French as 'Etude cristallographique par les rayons X de la structure de la vitamine B12', Bibliog. 60, 1955. 13pp. typescript.

'The structure of vitamin B12' (with A.W. Johnson and A.R. Todd), Bibliog. 64, 1955. 22pp. typescript, with manuscript additions and corrections by Hodgkin.

'The structure of vitamin B12 from X-ray analysis', 2pp. typescript, n.d. Not listed in Bibliog. 'La radiocristallochimie: formule stereochimique de la vitamine B12', by C. Stora, 20pp. typescript, in French, 1959.

Shorter manuscript and typescript drafts, brief manuscript notes and data, manuscript notes from the literature.

Correspondence re publications

Contents of untitled folder.

'The crystal structure of the hexacarboxylic acid derived from B12 and the molecular structure of the vitamin' (in collaboration), Bibliog. 61, 1955; 6pp. typescript, with manuscript additions and corrections by Hodgkin. 'The crystal structure of a cobalt containing degradation product of B12 and its bearing on the molecular structure of the vitamin', 7pp. manuscript draft.

'Some observations on the crystal structure of a chlorine substituted vitamin B12' (with M.J. Kamper), Bibliog. 62, 1955; 6pp typescript, with manuscript additions and corrections by Hodgkin. 'X-ray analytical evidence on the structure of vitamin B12' 'Hamburg paper', 7pp. typescript, latest bibliographical reference 1955. Not listed in Bibliog.

Letter from A.W. Johnson, 1955. Manuscript notes and data.

90pp. typescript, with manuscript additions and corrections; includes tables and appendices.

Manuscript draft of appendix, entitled 'On the intensity anomalies on the hexacarboxylic acid photographs', by A. Vos, with manuscript additions and corrections by Hodgkin: manuscript data.