INDEX

A
Accra, Africa, [50]
Adamski, G., [16], [203], [204], [278]
Aerial Phenomena Group, U. S. Air Force, [2], [271], [272].
See also [ATIC]
Aerial Phenomena Research Organization (APRO), [181], [219], [235–36], [275], [278]
Aerospace Technical Intelligence Center (ATIC), [2], [271].
See also [ATIC]
After-image, [242]
Air Defense Command, [72], [94], [139], [160], [162], [166], [167]
Air Force, U. S., [2], [272–75];
APRO challenge to, [235–36];
conspiracy charges against, [69–70], [277–78].
See also [ATIC]
Air Force pilots, UFO sightings by, [70–72], [112], [113]
Akron, Ohio, [53], [280]
Alamogordo, N.M., [92]
Alaska, [60], [152]
Aldebaran, [253], [254]
Almirante Saldanha, [207] ff
Aluminum foil, [164], [224], [225]
Alvarez, L. W., [139]
Amazing Stories magazine, [15], [16–21], [25]
American Airlines flights, UFOs reported from, [52], [68]
American Meteor Society, [88], [95], [111], [134], [135]
American Meteorite Museum, [102], [176]
Analyses of UFO “fragments,” [220], [231–34], [236]
Angel hair, [220–26];
alleged origins of, [194], [221];
arachnid, [220–24];
industrial, [224]
“Angels” on radar, [Pl. IVc];
collision course of, [153–54];
defined, [151];
conditions producing, [157–60], [164], [170];
moisture inversion and, [151], [158–60];
possible causes of, [157–58];
ring, [150], [165–66];
temperature inversion and, [151–52], [158–60];
UFO reports based on, [5–6], [71], [72], [151–52], [155–57], [161], [164–71], [182]
Ann Arbor, Mich., [241]
Antigravity, [195]
Aquarid meteors, [111], [134]
Armillaria mellea, [119]
Arnold, K., articles by, [15];
Maury Island investigation by, [22];
UFO sighting by, [13], [26], [28], [29]
Artificial gravitational field, [10], [193].
See also [G-field]
Artificial satellites, [45], [116], [172–73], [277], [288]
Asteroids, fragments of, [90]
ATIC, UFO investigations by, [5], [38], [46], [54], [68], [70], [72], [76], [80], [106], [108], [113], [126], [131], [135], [136], [141], [163], [169], [176], [182], [185], [224], [236], [239], [241], [245], [247], [254], [281];
resources of, [272–73];
responsibility of, [271–75]
Atlantis, [10], [17], [18]
Aurora Borealis, radar echoes from, [164]
B
Ball lightning, [176–80], [Pl. Vb];
theory of, [178];
USSR reports of, [178]
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]
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]
Greenland, phantom targets in, [166]
Griffis Air Force Base, [68]
Guantánamo Bay, Cuba, [42–44]
Gulf of Mexico, [5–6], [182]
Gulliver, L., [172]
H
Hamilton Air Force Base, [46]
Hanford, Wash., [135]
Harvard College Observatory, [111], [113], [175]
Height-finding radar, [153], [156], [162], [163]
Herget, P., [67]
Hermanas, N.M., [47]
Hidden World, [25]
Hoax, Ilha dos Amores, [206];
Maury Island, [21–23];
Schmidt, [183];
Scoutmaster, [136–37];
Shaver, [17–21]
Hoaxes, [198–99], [219];
photographic, [203–7], Pls. [VIa], [VIb], [213–16];
UFO, [199]
Humidity, inversions of, [151], [157–58]
Hynek, J. A., [37], [108], [111], [113], [127], [141], [273]
I
Ice crystals, radar echoes from, [71], [164];
sundogs from, [244], [247]
Ices, vaporizing, [94]
Icy cometoid, [90], [98], [101]
Ilha dos Amores, [206]
Inertia, law of, [194–95]
Inference, distinguished from observation, [5–6], [74];
limitations of, [4–5]
Insects, radar echoes from, [164–65]
Institute of Meteoritics, [93], [102], [175]
Intelligence, apparent control of UFOs by, [61], [80], [110], [168], [259]
Intercontinental ballistic missiles, meteors as possible, [105];
radar angels as possible, [166]
Interplanetary travel, [19], [77–78], [216–17].
See also [Spacecraft]
Inversions, moisture, [157–58];
temperature, [65], [253–54], [269]
Investigations, Congressional, [227], [277–78], [279]
Investigators, Air Force, [271–75];
civilian, [275–77]
Invisible UFOs, reports of, [145], [152], [155], [165], [193], [202]
Ionization, defined, [194];
angel hair produced by, [221];
radio interference by, [92], [178], [185], [187], [189]
J
James, R. L., [152], [156]
Japan, UFOs reported from, [73–75]
Jessup, M. K., [10], [16]
Jet planes, UFO reports based on, [50], [51], [52–56], [251]
Johannesburg, South Africa, [51]
Jupiter, mirages of, [81–85], [141–42];
seen through jet trail, [85–86]
K
Kearney, Nebr., [183]
Kentucky, UFO over, [58], [Pl. IIb]
Keyhoe, D. E., [10], [16], [69], [159], [276], [277]
Killian case, [52–56]
Kinross case, [154]
Kites, UFO reports based on, [56–57], [Pl. IIa]
Korea, UFO reports from, [73–75]
Khrushchev, [166], [235]
Kuiper, G. P., [230]
L
“Landings” of spacecraft, [180], [183–85], [203–4], [239]
La Paz, L., [93], [102], [175]
Laputa, [172]
Las Cruces, N.M., [267]
Lemuria, [10], [17], [18], [200]
Lens, defects in photographic, [123], [248], Pls. [VIIIa], [VIIIb];
of air, [63], [83], [255]
Leonid meteors, [90], [92]
Levelland, Tex., UFOs, [174–76], [179]
Liddell, U., [31]
Life magazine, [95], [129], [134], [259], [268]
Life, possibility of extraterrestrial, [4], [216–17], [269]
Light, deflection of, [194];
refraction of, [63–66];
velocity of, [19], [150]
Lightning, ball, [176–80], [Pl. Vb];
pinched, [177], [Pl. Va];
types of, [177]
Lights, Lubbock, [123–27];
reflections of, [127];
unfamiliar, [52–56], [240–41], [250–52];
rotating, [73–75]
Lincoln, Nebr., [178]
“Little Men,” [199], [220]
Lock Raven Dam, [180]
Logical defect, in UFO beliefs, [143]
Look magazine, [134], [210], [259]
Lorenzen, C., [181], [235], [236]
Los Alamos, N.M., [177];
conference on fireballs, [94]
Lubbock lights, [123–27]
Luminosity, of birds, [118–27];
of fungi, [119–20];
of meteors, [99–100], [106–7]
M
Magnesium, in meteors, [98];
in UFO fragments, [236]
Magnetic field, [172], [192]
Magnetic force, island propelled by, [172];
UFOs attached by, [49]
Magnetic lines of force, plane crash attributed to, [192–93]
Magnetism, [18], [172–73], [192], [195–96]
Maney, C. A., [260]
Manhattan Beach, Calif., [49]
Mantell case, [33–39], [192], [247]
Mars, as space base, [76];
comfort-loving creatures on, [216];
mirages of, [76], [253];
opposition of, [76];
possibility of intelligent life on, [269];
spaceship orbit from, [77–78]
Marysville, Ohio, [222]
Maury Island hoax, [21–23]
Menger, H., [202]
Menzel, D. H., [73], [92], [95], [175], [210], [230], [245], [249], [254]
Meteor processions, [107–8]
Meteor showers, [90–93], [111], [134];
dates of, [91]
Meteor trail, luminous, [88], [92], [96], [100], [107];
photograph of, [99], [Pl. IIIa]
Meteorites, composition of, [90], [98], [101];
recovery of, [101–3]
Meteoritics, meteors recorded in, [88–89], [95–96], [99]
Meteors, colors of, [97–98];
exploding, [96], [100], [104], [230], [236];
false beliefs about, [96–97];
formations of, [104], [106–7];
luminosity of, [99–100], [106–7];
numbers seen, [111], [134], [135];
odors from, [89];
paths of, [98–99], [Pl. IIIa];
radio and TV interference by, [185], [187], [189];
sounds made by, [96], [100–1];
spectra of, [94], [97–98];
structure of, [98], [100–1];
UFO reports based on, [88], [108–13], [185], [239–40];
velocity of, [93], [98], [106]
Michel, A., [10], [16]
Mirage, of Chicago skyline, [254];
of mountain peaks, [26–27];
on gun-barrel highway, [254–55]
Mirages, causes of, [63–66], [255];
of planets, [66–67], [81–85], [141–42], [253];
of stars, [60–62], [161], [170–71], [253–54];
on radar, [151–52]
Missiles, UFOs interpreted as, [93–95], [166], [231]
Mock sun, [38], [244–47]
Moisture, inversions of, [151], [157–58]
Monster, New Jersey, [198];
West Virginia, [137–38]
Moon, hidden side of, [203];
inhabitants of, [202–3];
planet hidden by, [201];
radar echoes from, [164], [166], [167];
UFO base on, [228];
underground cities on, [228]
Moon Bridge, [228–30];
spectrographic analysis of, [230]
Moonwatch, [190], [228]
Moore, O., [185]
Mother ship, [115], [199], [201]
Mu, [18]
Mummified men, [219]
Murray, Ky., [96]
Mushrooms, luminous, [119–20];
odor of, [120]
Myth, G-field, [193–95]
N
Nash, W. B., [256], [257], [258], [259], [260], [262], [264]
Nash-Fortenberry case, [256–65]
National Investigations Committee on Aerial Phenomena (NICAP), [45], [276–78].
See also [NICAP]
Negative gravity, [195]
New Haven, Conn., [231]
New Mexico, green fireballs in, [92], [93–95]
Newton, Isaac, [18], [191], [194], [195]
NICAP, E-M effects studied by, [186–88];
membership of, [277];
pancakes studied by, [226–28];
Ryan case studied by, [69–70]
Nike site, UFO reported from, [239]
Nininger, H. H., [102], [176]
Norfolk, luminous owls of, [118–19]
Norton County, Kansas, meteor fall at, [102–3]
Norway, [248], [Pl. VIIb]
O
Odessa, Wash., [62]
Office of Scientific Intelligence, [139], [142], [143]
Olivier, C. P., [95]
Orbit of Martian spaceship, [77–78]
Orogrande, N.M., [181]
Owls, luminous, [118–19]
Ozma, Project, [216–17]
P
Pacific ocean, [105–6]
Page, T. W., [139], [287]
Palmer, R. A., [15–21], [23], [26], [227]
Pan American Airlines flights, UFOs reported from, [103], [104–6], [256]
Pancakes, extraterrestrial, [226–28]
Panel of civilian scientists, [138–43];
report of, [142]
Panic, growth of 1952, [133–35];
growth of 1957, [174–76]
Paracelsus, [172]
Parallel universes, [9]
Pelicans, UFO report based on, [130]
Perseid meteors, [98], [111], [134]
Phantoms, radar. See [Angels]
Phosphorescent organisms, [119–20]
Photographs, UFOs in, [122], [130–32], [205–7], [248];
by gun-camera, [162–63], [168], [170]
Photography, trick, [205], [209], [212], [215]
Pibal, [40], [46]
Pile d’assiettes, [26], [Pl. Ib]
Pilots, UFOs reported by, [70], [92], [103–6], [109–10], [250], [256]
Pinched lightning, [177], [Pl. Va]
Plane crashes attributed to UFOs, [11], [23], [35], [154], [192], [276]
Planets, extra-solar, [10], [217];
mirages of, [66–76], [81–85], [141–42], [253]
Plank, V. G., [158]
Plato, [18]
Port Huron, Mich., [160]
Presque Isle, Me., [139]
Probability, methods of, [187–88]
Project Ozma, [216]
Project Twinkle, [94]
Propulsion, theories of UFO, [190–93]
Publications, UFO, [67], [275–76]
Puerto Rico fireball, [99], [Pl. IIIb]
R
Radar, as reporter, [145–47];
experiments in, [152–53], [157–60];
principle of, [147–50];
ring angels on, [165–66]
Radar echoes, from ice crystals, [71], [164];
from moon, [164], [167];
interpretation of, [145–47];
possible sources of, [164].
See also [Angels]
Radarscope, mechanism of, [146]
Radar-visual UFOs, [160–63], [167–71]
Radio astronomy, [216]
Radio noise from space, [217]
Radio-TV failures, [181], [184–87]
Radio waves, behavior of, [153];
scatter of, [153], [164];
secondary reflection of, [154], [158];
velocity of, [150]
Radioactivity, [35], [80], [137], [172], [185]
Radiosonde, [39–40], [163]
Rain, blue, [234];
silver, [231–34]
Rapid City, S.D., [167–70]
Red Bluff, Calif., [253]
Reflections, multiple, [263], [266];
UFOs from, [242–44], [248], [249–50], Pls. [VIIa], [VIIb]
Refraction, atmospheric, [63–66], [269];
of radar beams, [158–60]
Refractive index, [159], [160]
Rheims, France, [245]
Ring angels, [156], [165–66]
Robertson, H. P., [139]
Robins Air Force Base, [112]
Rocket, reported as UFO, [44–45]
Rosalia, Wash., [46]
Rotating lights of Japan, [73–75]
Ruppelt, E. J., [126], [127], [133], [167]
Russia, ball lightning in, [178]
Ryan case, [68–70]
S
Salina, Kans., [164], [Pl. IVc]
Salt Lake City, Utah, [245–47]
Samford, J. A., [157]
Satellites, artificial, [116], [172], [173], [277];
natural, [108]
Saturn, visitors from, [183], [186], [200], [203]
Saturn-like UFOs, [7], [206], [207], [214]
Saucer. See [UFO]
Saucerdom, myths of, [10–11], [193–95]
Scatter of radar beams, [164], [170–71]
Schilling Air Force Base, [164], [Pl. IVc]
Schmidt, R., [183]
Science, methods of, [3], [289]
Science fiction, [1], [9], [17], [19], [23–25], [200]
Scientists, views on UFOs, [139], [142], [143], [215], [269–70], [287]
Scoutmaster, UFO reported by, [136]
Scully, F., [16]
Sea gulls, UFO reports based on, [121–22], [130–32], [213]
Searchlights on clouds, [263], [266], [283], [285]
Sebago, U. S. Coast Guard cutter, [182]
Sebree, Ky., [223]
Secondary reflection of radar beam, [154], [158]
Secrecy, alleged Air Force, [37], [69–70], [154], [157], [283];
alleged government, [202]
Security, national, [147], [271], [275], [289]
Shapes of UFOs, [7–8], [206–7]
Shaver hoax, [17–21], [25]
Sheep Rock saucer, [224]
Sheffield Lake, Ohio, [279]
Siberian meteor of 1908, [100], [101]
Silver iodide, [225]
Silver rain, [231–34]
“Simultaneous” radar-visual UFO sightings, [5–6], [72], [160–63], [167–71], [182]
Sirius, mirages of, [61–63]
Size, difficulty of estimating UFO, [14], [54], [131], [181], [260]
Skyhooks, [31–33]
Smithsonian Astrophysical Observatory, [57], [99], [175], [273]
Sound, associated with meteors, [96], [100–1];
associated with UFOs, [7], [193];
velocity of, [147]
Spacecraft, bases for, [228];
“landings” by, [183–85], [203–4], [239];
motive power of, [192–93];
occupants of, [183], [199], [200], [203], [220], [226];
signals from, [11], [165];
theories about, [10–11], [190–95]
Spectra of meteors, [94], [97–98]
Spiders, angel hair produced by, [220–24]
Sputnik II, [116], [173]
St. Elmo’s fire, [176]
Stack, formations, [49], [257], [265–66];
of coins, [49];
of plates, [26]
Stars, hypothetical planets of, [10], [216]
Statistical summaries of UFO cases, [274]
Stones from heaven, [89], [289]
Sundogs, [38], [244–47]
Superrefractive conditions, [159]
Sutton, W. Va., monster, [137]
Sylacauga, Ala., meteorite, [88], [230]
T
Tacker, L. J., [235], [236]
Taormina, Sicily, [205], [Pl. VIa]
Taurid meteors, [90], [101], [189]
Temperature inversions, displacement of image by, [65];
low-level, [155], [157];
mirages caused by, [82], [157], [170], [253–54], [269];
multiple, [82], [158], [253];
radar angels from, [151], [158–60], [170]
Tero, [19], [25]
Texarkana, Ark., [166]
Tin, in alloys, [234];
in saucer fragments, [232]
Tombaugh, [256], [266–70];
UFO reported by, [268]
Trans World Airlines flight, UFOs reported from, [70]
Travel, interplanetary, [19], [77–78], [216–17];
in time, [11]
Tremonton, Utah, movies, [130–32]
Trindade Island UFO, [206–16], [Pl. VIb]
True magazine, [158]
Truth, alleged Air Force concealment, [37], [69–70], [107], [154], [157–58], [220], [277], [283]
Tumbleweeds, as UFOs, [57]
TV set, malfunction of, [185].
See also [E-M effects]
U
UFO, as misnomer, [271];
defined, [2]
UFO reports, Air Force study of, [272–75];
commonest explanations of, [105–6], [275];
witnesses making, [2], [272]
UFO Research Committee of Akron, Ohio, [276], [279], [281], [288];
Fitzgerald case studied by, [283–87];
Killian case studied by, [53]
UFOs, colors of, [7];
electromagnetic, [172–75];
formations of, [114–16];
fragments of, [88], [230–37];
invisible, [10], [145], [152], [155–57], [165], [193], [194], [202];
motions of, [7];
radar reports of, [5], [152], [155–57];
shapes of, [7–8];
silence of, [193];
sounds made by, [7], [193];
types of, [6–9];
velocity of, [13], [124], [129], [161], [193], [194], [258]
Unidentified flying object, [2].
See also [UFOs]
Unified field theory, [196]
United Airlines flights, UFO reported from, [92], [105]
Unknowns, [274].
See [UFOs]
V
Van Tassel, G. W., [201], [202]
Vapor lock, [188], [190]
Velocity, difficulty of estimating UFO, [14], [41], [131];
of light, [19], [150];
of meteors, [93], [98–100];
of radio waves, [150];
of sound, [147]
Venus, magnitude of, [66];
mirages of, [67–75], [181];
visitors from, [203]
Visitors, extraterrestrial, [4], [10–11], [183–84], [186], [199–200], [203–4]
W
Wallops Island, Va., [44–45]
Washington, D.C., “invasion,” [155–57]
Washington, Ga., [225]
Wave clouds, [26–29]
Weather, effects on radar, [150–51], [154], [155], [157–58]
Weather balloons, [31–33].
See also [Balloons]
White, T. D., [237]
White Pass, Wash., [28], [Pl. Ia]
White Sands, N.M., [92], [180]
Whitted, J. B., [108].
See also [Chiles-Whitted sighting]
Wilkins, H. P., [228]
Wilkins, H. T., [16]
Witnesses, UFO beliefs of, [52], [54], [80], [104], [106], [110], [168], [259], [269]
Wright-Patterson Air Force Base, UFO sighted from, [70–72]
X
Xenochemistry, [231]