o Previ OUS page was bl ank, therefo re not film ed. . ww CONTENTS Re 37h ABSTRACT oo #@ @ © © © &# @ @ @ FOREWORD . 7 e@ @ @ @ @© «€& @&© @ ACKNOWLEDGMENT . 2... 2 ee ‘TABLES . 0. ee ee ee ee 10 ILLUSTRATIONS . . .. 2... 10 CHAPTER 1 INTRODUCTION... 13 Objective ...... Background ..... 13 @© © © @ # 8 e@ ee @ e e ° > ° « ° ° a e @ &© @ ee @ &© @ « © @ © e © # # @ oe # © @ e@ © @# e© @ @ 2. 8 @ os @& © @ © @ # &® @ @ &® @ © oo 8 @ eo « @ «© e© #8 # @ #6 @ @ «© #«¢ e@ oo #8 #@ e@ e @« @© © © @ &#® ® # @ @ eo ee @ * 8 © © e@ © @ # @® © © @ @ oe 6©« e@© «© *®& #2 © © @ @ 4 © @ a 28 © # © @© © # # © © . oo e« «© «© © © #© # #© @ @ @# @ . eo @ &© © e@ e@# «@ @ s s e e J e e e. o e e RESULTS ..... General... 2.2 «© * «© « e e Overpressure and Fositive Phase Duration Shot l ... Shot 3 .. . e es e e e Maximum Deflecticn MeasurementS 2. Shot 1 Damage ...... oe .« 6 « @ ¢ @® » ° . * Shet 3 Damage .... es e e e e @ © «© . e © «© e ee oe # # «# . e . . cd . °. @© . e * o e¢ 16 16 16 18 23 23 23 23 25 26 ee 3.2.1 342.2 ..... eo 2.5.2 Standard Tests o Photography ..... oe @ oe @ Field Tests . @ 2.5.1 © Static Breakage Tests © .... © Sample Plots @ oo @ # 6 oe e@ # s #* @ e@ ° @ ee «@ @ © @ « 3 -4 5 # 2.2.2 Victor Island e 2.2.3 William Island Instrumentation... e CHAPTER 3 1 .© 8 ee @ 2.6 oo 16 @ ee 2.5 @ « 2.4 28» © 2.3 General . ... eee Tree Stands ..... 2.2.1 Unele Island oo »- @.1 2.2 EXPERIMENT DESIGN @# CHAPTER 2 e 1.1 1.2 <6 26 26 26 28 28 28