Distance, difficulty of estimating, 14, 41, 54, 81, 105–6, 110, 131, 180, 260–61 Dogfight, balloons engaged in, 47; Gorman, 77–85; Guantánamo Bay, 42–44 Draconid meteors, 101 _Dracula’s Daughter_, 282, 283 Ducting conditions, 6 Duluth, Minn., 72 Duplicity, charges of, 283–84, 287 E Eagle River, Wis., 226 Early Warning System, 139, 158, 166 Earth, doughnut-shaped, 25 Eastern Airlines flights, UFOs reported from, 109–10, 250 Echo machine, radar as, 147–48 Echo satellite, 45 Echoes, radar. _See_ Angels Einstein, Albert, 18, 191, 195 Electrical appliances, E-M interference with, 173, 184, 186–87; meteor interference with, 185, 189 Electromagnetic (E-M) effects, NICAP study of, 186–88 Electromagnetic force, 172–75, 188 Electromagnetic phenomena, reports of, 173, 181, 184–87 Ellsworth Air Force Base, 167 England, blue rain in, 234; invisible UFOs in, 165 Eureka, Utah, 189 Evidence, nature of, 4–6 Extraterrestrial beings, possible communication with, 3, 216–17 Extraterrestrial visitors, alleged signals from, 11, 165; appearance of, 200, 201; languages used by, 183, 200, 203; reported contact with, 183–84, 186, 199–200, 203–4 F Fallacies about meteors, 96–97 False targets on radar. _See_ Angels Farmington, N.M., 48–49 _Fate_ magazine, 15, 16, 22 Fear of the unknown, 121–23 Film, UFOs found on, 247–50, Pls. VIIb, VIIIa, VIIIb Fireball, of Sept. 18, 1954, 92–93; “Sunshine,” 135 Fireballs, 103–6; clusters of, 104–7; conference on, 94; green, 92–95, 97, 98; official records of, 88–89, 95–96, 99; slow, 92, 99, 107–8 Fitzgerald sighting, 279–88 Flower and Cook Observatory, 111 Flying bird cage, 241–42 Flying egg, 175, 181–82, 184 Flying hubcap, 205 Flying saucer, clubs, 275–76; defined, 2; first report of, 13. _See also_ UFO _Flying Saucers_ magazine, 24–25, 227, 276 Foo balls, 73 Force field, 172, 190, 191, 221 Fort, C., 1, 2, 3, 10, 16, 18, 20 Fort Itaipu, Brazil, 173, 184 Fort Pierce, Fla., 250 Fortenberry, W. H., 256, 258, 259 Fragments of alleged UFOs, 23, 219–20, 230, 231–33, 235–36 France, angel hair reported in, 220–22; UFO photographed in, 123, Pl. IVb Fraud, in contact stories, 202 Friction, atmospheric, 194 Friend, R. J., 127 Fry, D. W., 200 G Gainesville, Fla., 51 Galileo, 191, 192, 276 Geminid meteors, 6, 98, 101 G-field, plane crash attributed to, 154; propulsion by, 190, 193; theory of, 190–95 G-field beam, reversed, 154 Ghosts, radar. _See_ Angels Godman Air Force Base, 33–39 Gorman, G. F., UFO sighting by, 77–80 Gossamer, 220. _See also_ Angel hair Goudsmit, S. A., 139 Gravity, force of, 18, 195–96; law of, 195; negative, 195; self-contained, 202; shield for, 194–95 Green fireballs, 92–95, 97, 98; Los Alamos conference on, 94