The crystal structure of cyanuric triazide', by I.E. Knaggs. Reprinted from Proceedings of the Royal Society of London, Series A. no. 871, vol. 150.

The dissipation of natural resources', by F.H.V. Fielder. A verbatim report of an address delivered to the New Zealand section of an Institution, possibly of chemists.

Die genaue Thermodynamik der Membrangleichgewichte - II', by F.G. Donnan. Reprinted from Zeitschrift fur physikalische Chemie 168

Relations between intermolecular distance, force constant and energy dissociation for carbon to carbon linkages', by J.J. Fox and A.E. Martin. Reprinted from the Journal of the Chemical Society

Mathew Atkinson Adam to Sir Robert [Robertson]. Encloses a copy of an application for membership of the Institute of Chemistry for which Sir Robert agreed to act as referee.

Transmission and reflection of plastics and metal blacks in the far infra-red', by H.S. Seifert and H.M. Randall. Reprinted from the Review of Scientific Instruments, vol. II, no. 11.

Sir Harold Carpenter, FRS', an obituary by C.A. Edwards. Reprinted from the Journal of the Institute of Metals, vol. 66, Part 12.

Col. [Robert Annesley] Craig, Isle of Wight, to Sir Robert Robertson. Asks for a testimonial for an application for the post of education officer to the London County Council. With draft testimonial by Sir Robert and letter of thanks from Craig.

Neue Versuche zur Photographie im Ultraroten', by M. Czerny and P. Mollet. Reprinted from Zeitschrift für Physik, no. 108, Heft 1 and 2

Sir Richard Threlfall, G.B.E. F.R.S. 1861-1932', by H.T. Tizard. Reprinted from the Journal of the Chemical Society.

[?] to the secretary of the provisional research committee for the linen trade, Belfast, testifying in favour of Dr [William Howieson] Gibson in connection with an application for the post of director of research to the linen industry. With an addition...

Some achievements of chemical industry during the war in this country and in France'. By William MacNab. Reprinted from the Journal of the Society of Chemical Industry, vol. XLI, no. 23.

Infra-red absorption spectra of AsH3, AsD3 and PD3', by E. Lee and C.K. Wu. Reprinted from the Transactions of the Faraday Society, no. 224, vol. XXXV, part 12

An appreciation of the late Dr J.H. Harker, F.R.S.', by J.F. Crowley. Reprinted from The Chemical Age.

Viscosity and its expression'. By Guy Barr. Reprint of paper for the World Petroleum Congress

The microbiological aspect of corrosion', by A.C. Thaysen. Reprinted from the Science of Petroleum.

Robert Percival Cook to [Sir] Robert [Robertson], enclosing a c.v. and photograph of his son. With testimonial by Sir Robert Robertson. [Copy].

The relation of micro-organisms to the decay of stone', by S.G. Paine, F.V. Linggood, Freda Schimmer and T.C. Thrupp. Reprinted from Philosophical Transactions of the Royal Society of London, Series B, vol. 222

The area of contact between stationary and between moving surfaces', by F.P. Bowden and D. Tabor. Reprinted from Proceedings of the Royal Society of London, Series A, no. 938, vol. 169.

Use of polarised radiation in infra-red analysis', by G.B.B.M. Sutherland and A.V. Jones. Reprinted from Nature, vol. 160.