Principles of an electronic theory of organic reactions', by Christopher K. Ingold. Reprinted from Chemical Reviews, vol. 15, no. 2

Absorption measurements and transition probabilities for the A(0,0) and B(0,1) Bands of oxygen', by W.H.J. Childs. Reprinted from the Philosophical Magazine, Series 7, vol. XIV

A method for the rapid determination of dust in the air', by L.C. McNair and J.F. Hist. Reprinted from the Journal of the Society of Chemical Industry, vol. XLVIII, no. 22.

James C. Irvine, 'Scotland's contribution to chemistry', The Pharmaceutical Journal and Pharmacist.

Time course of photosynthesis for a higher plant', by E.D. McAlister. Smithsonian Miscellaneous Collections, vol. 95, no. 24.

William John Hall, Ilkley, Yorkshire, to Sir Robert Robertson. Asks for a testimonial in connection with an application for the post of senior research assistant at the Building Research Station. With a reply from Sir Robert.

The spectroscope and the atom', by Alfred Fowler. A Thomas Hawksley Lecture first delivered in London.

Financing industrial research', by H.W.J. Stone. Reprinted from The 19th century and After, vol. LXIV.

The trend of research in plastic materials', by Gilbert Morgan. A presidential address to the Institute of the Plastics Industry. Reprinted from Chemistry and Industry, vol. LVII, no. 1.

A recommendation by Sir Robert to promote John Alexander Robertson Stoyle from A.I.C. to F.I.C.

The far infra-red spectrum of water vapour', by H.M. Randall and others. Reprinted from the Physical Review, vol. 52.

The future of the chemistry of petroleum'. By James F. Norris. Copy from Industrial and Engineering Chemistry, vol. 18, no. 10.

On the structure and interpretation of the infra-red absorption spectra of crystals', by R.B. Barnes and others. Reprinted from the Physical Review, vol. 48.

Fundamental absorption bands of deuteroammonias', by M.V. Migeotte and E.F. Barker. Reprinted from Physical Review, vol. 50.

Menu of Jubilee dinner of Institute of Chemists, with list and photographs of past presidents, 1877-1927

Magnetic anisotropy and electronic structure of aromatic molecules' by Kathleen Lonsdale. Reprinted from the Proceedings of the Royal Society of London, Series A, no. 896, vol. 159.

Lead selenide cells for infra-red spectroscopy', by D.E. Blackwell and others. Reprinted from Nature, vol. 160.

Professor [Joseph Edward] Coates, Department of Chemistry, University of Birmingham, to Sir Robert Robertson. Asks if he would comply with the request of Dr Aquila Forster to act as referee in an application for a post as senior lecturer in organic che...

The influence of the amount of surplus liquid on the swelling maximum of rubber jellies', by C.M. Blow and P. Stampberger. Published by the Dutch Chemical Society. T. 48, no. 7

River pollution and its effects with special reference to the London rivers;', by J.H. Coste. A paper read at the winter session of the British Waterworks Association, 22 November 1928. An extract from the Official Circular of the British Waterworks A...