◆ SpookStack

<L specific work. Impact tests have been conducted on three cadavers to date. This work is being conducted under the direction of Dr. B. PERSONNEL - Both full-time technical personnel and -JnatS8 relative research personnel have been acquired and indoctrinated re to their specific function. S> P C. TECHNICAL PROGRESS Following is the technical progress made under the current contract: a Specialized instrumentation and numerous testing techniques ' have been developed to obtain -the desired dynamic data. b Considerable data has now been obtained supporting the resonance-cavitation thorny of brain concussion. c Preliminary acceleration threshold data has been obtained for a fluid-filled glass simulated .skull. pressure fluctuations within a glass emulated skun su J . to either impact or sound waves propagated m an . 0 Tni till studies have been made on the simulated glass skuII - - tb. cavitation -patterns for varaous types of impact. 7‘ SgfnafSpSalf oSepfJo^hf “tl^S jetton 5 thf?le"rsi™ blast study, to $4,034.61. 0 ^ the interest of efficiency and economy it is requested that at least thio level of activity be maintained for the coming y