bibliography - Canadian Military History

12,414. C24. Author Unknown. Protective walls in single storey factories: Methods of
heightening and strengthening existing walls. No Date. PRO HO 191/188.
12,415. C25. Author Unknown. Protected accommodation in large buildings of load bearing
construction. No Date. PRO HO 191/188.
12,416. C26. Author Unknown. Timber shelters for countries where timber is plentiful and steel
difficult to obtain. No Date. PRO HO 191/188.
12,417. C27. Baker, J.F. Shelter design. April 1942. PRO HO 191/188.
12,418. C28. Author Unknown. Structural protection of buildings against small incendiary
bombs and spread of fire: Part I Overhead protection: Roof and stopping layers. No Date.
PRO HO 191/188.
12,419. C29. Author Unknown. Structural protection of buildings against small incendiary
bombs and spread of fire: Part II Lateral protection. No Date. PRO HO 191/188.
12,420. C30. Author Unknown. Structural protection of buildings against small incendiary
bombs and spread of fire: Part III Internal compartmenting. No Date. PRO HO 191/188.
12,421. C31. Author Unknown. Reinforced concrete for maximum energy absorption under
impact: The use of various forms of steel as reinforcement. No Date. PRO HO 191/188.
12,431. 1. Author Unknown. Communications at Sectors. November 1939. PRO AVIA 7/198.
12,432. 2. Author Unknown. Interim report on Raid X43 of 10 November 1939. November 1939.
PRO AVIA 7/198.
12,433. 3. Author Unknown. Aims of Operational System Research. November 1939. PRO
AVIA 7/198.
12,434. 4. Author Unknown. Raid X28 of 28 November 1939. December 1939. No PRO number.
12,435. 5. Author Unknown. Proposed RDF operational system. December 1939. PRO AVIA
7/198.
12,436. 6. Author Unknown. Raid X37 etc of 29 November 1939. December 1939. No PRO
number.
12,437. 7. Author Unknown. Identification of enemy tracks. December 1939. No PRO number.
12,438. 8. Author Unknown. Experimental test of D/F fixer at Debden and Duxford. January
1940. PRO AVIA 7/198.