Balloon, pibal, 40; radiosonde, 39–40, 163; Skyhook, 31–33, 38, 49; toy, 56 Balloons, burst, 48, 50; clusters of, 41; dogfight among, 47; dogfight with, 42–44, 77–79; shapes of, 32, 40–41; UFO reports based on, 33–39, 42–44, 46, 47, 48, 80, 82 Barauna, A., 208 ff Barker, G., 24 Bellefontaine, Ohio, 162 Berkner, L. V., 139 Bethurum, T., 16, 201 Biot, J. B., 89, 289 Birds, light reflected from, 122, 125, 127, 130–32; luminous, 118, 127; migrations of, 127; radar echoes from, 164–66; UFO reports based on, 122–27, 130–32 Blip, defined, 5 Boulder, Colo., 249, Pl. VIIa Brazil, UFOs reported from, 184, 206, 207, 231–34, 236 Bubbles, UFO reports based on, 57, 58 Bubbles of air, angels produced by, 151 C Capella, UFO reports based on, 161, 170–71, 253–54 Carbon 14, 221 Central Intelligence Agency, 70, 139, 278 Chant, C. A., 107 Chemical analysis, of meteorites, 90, 98; of Moon Bridge, 230; of pancakes, 227–48; of saucer fragments, 232–34, 236 Chesapeake Bay, Va., UFOs reported over, 256–65 Chiles, C. S., 108 ff Chiles-Whitted sighting, 108–13 Cigar shape, 7, 95, 109, 243, 253 Cincinnati, Ohio, 67, 224 Civilian investigators of UFOs, 186, 275–78 Civilian Research Interplanetary Flying Objects (CRIFO), 67 Civilian scientists, panel of, 138–43; report of, 142 “Classic” UFO, defined, 33 Clouds, grindstone, 26, Pl. Ia; ice crystals in, 71, 164, 244, 247; orographic, 26; searchlights on, 263, 266, 283–85; “stack of plates,” 26, Pl. Ib; wave, 26–29 Clubs, flying saucer, 275–76 Coast Guard station, UFO photographed from, 122, Pl. IVa Coburn, Va., 224 Coincidence, role of in UFO sightings, 238–39 Coleman, W. T., 132, 252 Collision course, apparent, 60, 104, 106, 109, 113 Color, of meteors, 97–98; of UFOs, 7 Comet, BOAC, 276 Comet Biela, 92 Comets, discovery of, 103; meteors associated with, 90; remnants of, 90, 98 Condensation trail, 50 Congress, U. S., 69 Congressional inquiry, requests for, 227, 277–78, 279 Conspiracy, allegations of, 11, 69–70, 276, 277 Contact stories, pattern of, 199–200 Contactees, 199–205, 277 Control by intelligence, apparent, 42, 60, 61, 80, 104, 110, 259 Copper in meteors, 98 Cosmic rays, power from, 10, 193 Coy, Cindy, 138 Cramp, L. G., 16 Craters, meteor, 100 Crisman, F. L., 21, 22 Cults, flying saucer, 108, 199, 201–2, 275–76 Curaçao, N.W.I., 57, Pl. IIa D Dahl, H. A., 21 Danby, Calif., 243 _Day the Earth Stood Still_, UFO pictured in, 133 Defense, national, 147, 237, 271 Deflection, of radar beams, 151; of starlight, 194 Dero, 18, 19, 22, 25 Discoverer VIII, 277 Disk shape, of meteors, 95, 99, 101; of UFOs, 7, 13, 140, 280 Disks, flying, 13. _See also_ UFO