X-ray study of crystal dynamics: an historical and critical study of experiment and theory', by Kathleen Lonsdale. Reprinted from the Proceedings of the Physical Society, vol. 54.

Evolution in chemistry', by John Read. Two lectures delivered at St. Andrews University.

Arthur Marshall, chemical inspector, Indian Ordnance Department to [Sir Robert] Robertson. Asks if Sir Robert could find a replacement for him at the Ordnance Department. With memorandum by Marshall on the post.

Specific heat of -brass', by R. Eisenschitz. Reprinted from Nature, vol. 147.

Experiments on the manurial value of sewage sludge from septic tanks', by H.T. Cranfield, Reprinted from the Empire Journal of Experimental Agriculture, Vol. VII, no. 28

Y. Ashcroft, Preston, to Lady Robertson.

A lost opportunity. An encounter with W. Shakespeare on a train', by Dr Sayler, typescript sheets.

Reprints.

Correspondence relating to Arthur Marshall and Godfrey Rotter.

Sun rays and plant life', by E.S. Johnson. Reprinted from the Smithsonian Report.

Draft testimonial by [Sir Robert Robertson] on behalf of Mr H.A. Phillips in connection with his application for the post of inspector of factories.

Alan Stuart, University College, Swansea, to Sir Robert Robertson. Encloses his notes on Raman's paper on diamonds.

The ecology of activated sludge in relation to its properties and the isolation of a specific soluble substance from the purified effluent', by N.W. Barritt. Reprinted from the Annals of Applied Biology, vol. XXVII, no. 1

The use of ascorbic acid (vitamin C) in the treatment of tooth extraction wounds', by H.G. Campbell and R.P. Cook. Reprinted from the British Dental Journal, vol. LXXII, no. 1.

[Ernst] Berl, Carnegie Institute of Technology, to Sir Robert [Robertson]. Thanks him for his intervention, states that the Ministry of Supply had shown interest in his propositions [unspecified] and expresses his eagerness to help, saying that he had ...

Practice with science: the farmer's position and the scientific worker's programme', by T. Middleton. An address to the agricultural section of the British Association for the Advancement of Science, delivered 31 August 1939

The occurrence of rare elements in coal ashes', by V.M. Goldschmidt. A lecture delivered to the B.C.U.R.A. research staff.

Hand-written notes or summary of a report of a special committee of some unspecified council, possibly of the Royal Society, on the question of a professional register for chemists.

Crystal dynamics of rocksalt', by Kathleen Lonsdale. Reprinted from Nature, vol. 149.

Memorandum by Sir Robert Robertson with regard to the qualifications of Professor James Irvine Orme Masson. With a copy of details of the work done by Masson at the Research Department, Woolwich.