1. DMO/ADD/52/1 Reference (shelfmark): DMO/ADD/52/1 Title: Proceedings of the Committee of Imperial Defence, &c., &c. Printed for the Committee of Imperial Defence. February 1912.' 'Secret. Collection Area: Map Collections Languages: English Date Range: 1912 Extent: 1 volume (134 pages)
2. DMO/ADD/52/2 Reference (shelfmark): DMO/ADD/52/2 Title: 'Dominions No. 9. Papers laid before the Imperial Conference: Naval and Military Defence.' London: H.M.S.O. Collection Area: Map Collections Languages: English Date Range: 1911 Extent: 19 pages with a folded map
3. DMO/ADD/52/3 Reference (shelfmark): DMO/ADD/52/3 Title: Enquir[ies] regarding Defence Questions to be discussed at the Imperial Conference. Collection Area: Map Collections Languages: English Date Range: 1911 Extent: 4 fascicles
4. DMO/ADD/52/4 Reference (shelfmark): DMO/ADD/52/4 Title: 'Summary of Memoranda submitted to, and proceedings of, the Colonial Conference of 1907, and the Inperial Conference of 1909.' Collection Area: Map Collections Languages: English Date Range: 1910 Extent: 1 booklet (15 pages)