1. LKE5.1 Reference (shelfmark): LKE5.1 Title: British Trust for Ornithology Scope & Content: Script for talk at Waldorf hotel Collection Area: Sound Archive Languages: English Date Range: 1936 Extent: 10 folios
2. LKE5.2 Reference (shelfmark): LKE5.2 Title: British Trust for Ornithology Scope & Content: Script for talk given to Trust in 1937 and to Zoological Society in 1938 Collection Area: Sound Archive Languages: English Date Range: 1937 Extent: 6 folios
3. LKE5.3 Reference (shelfmark): LKE5.3 Title: Natural History Society Scope & Content: Script for talk Collection Area: Sound Archive Languages: English Date Range: 1938 Extent: 3 folios
4. LKE5.4 Reference (shelfmark): LKE5.4 Title: Rotary Club of St. Annes-on-the-sea Scope & Content: Large poster advertising lecture by Koch on wild bird songs and how he records them Collection Area: Sound Archive Languages: English Date Range: 1957 Extent: 1 folio
5. LKE5.5 Reference (shelfmark): LKE5.5 Title: London Symphony Orchestra Club Scope & Content: List of music to be used in lecture Collection Area: Sound Archive Languages: English Date Range: 1960 Extent: 1 folio
6. LKE5.6 Reference (shelfmark): LKE5.6 Title: Rotary Club of Ealing Scope & Content: List of music to be used in lecture Collection Area: Sound Archive Languages: English Date Range: 1962 Extent: 1 folio
7. LKE5.7 Reference (shelfmark): LKE5.7 Title: Untitled Scope & Content: Unidentified lecture notes on history of recordings. Undated document(s) Collection Area: Sound Archive Languages: English Date Range: Mid 20th century Extent: 6 folios
8. LKE5.8 Reference (shelfmark): LKE5.8 Title: Animal Language Scope & Content: Draft script for lecture entitled animal language Collection Area: Sound Archive Languages: English Date Range: 1962 Extent: 31 folios