A series of minutes from various ICI Research Department Polythene Technical Committee sub-committees including:

- Reaction sub-committee minutes of 4 meetings chaired by J.C. Swallow 29th November 1937 - 7th April 1938

- Gas Compression sub-committee minutes of 5 meetings chaired by J.C. Swallow 9th November 1937 - 25th March 1938

- Ethylene Production sub-committee minutes of 5 meetings chaired by J.C. Swallow 22nd November 1937 - 2nd September 1938

- Wallerscote Pilot Plant sub-committee minutes of 3 meetings chaired by J.C. Swallow 29th November 1937 - 10th March 1938

- "Alketh" Committee minutes of 4 meetings chaired by J.C. Swallow 14th November - 24th May 1937