oe 8000 8 s 70,000 3 $ 2—_— b. mf terre Pr oT i 80,000 30,000 20,000 10,000 Friavze 1.—Upper winds at shot time. zi + FYINNS SUN AP pat ep ete t eee 100,000 Phas yg poLega ppp apes of ff et $10,606 * oP 120,000 FEET mrt oo RADIOACTIVE FALLOUT AND ITS EFFECTS ON MAN Arrows blow with the winds, and barbs ‘oo oneal eel w__f \, g tog indicate wind speed; full barb, 10 knots; one-half barb, 5 knots.