26 253 



(7) "Experiments on the Pressure Wave Thrown out by Submarine 

 Explosions," by H.W. Hllllar, Department of Scientific Research and Experi- 

 ment, R.E. 142/19, 1919. 



(8) Admiralty Research Laboratory Report on the "Nature of the 

 Pressure Impulse Produced by the Detonation of Explosives Under Water. An 

 Investigation by the Piezo-Electric Cathode-Ray Oscillograph Method," 

 A.R.L./S./12, C.B. 01670 (12), dated November 1924. 



