81 SCAEUOLA PISONIA POPLAR poGwoop “SEQUOIA HICKORY EVENT DATE OR 8 49 TO-6 1.6 43 TO 47 72 50 BASE BASE 48 , 50 TO 51 4|.2 TO BASE 49 -7 46.5 46 40 TO 49 - To 39 45 BASE 9 31 26 TO 28 25 10 TO 10.6 65 TO 66 tl 10 TO 12 i TO 135 1,000 OF FEET PENETRATION ALTITUDE X 10. ¢ 234567869 i4 FISSIONS 2345678 8 x 10°. NUMBER OF t » 10% 234567 8 9