Popular Astronomy, Volume 58Goodsell Observatory of Carleton College, 1950 |
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Page 35
... recent geological forma- tions is a well - established and intriguing fact . It is not known whether to inter- pret this absence as evidence that meteorites did not fall in earlier geological times or to look upon it as proof that such ...
... recent geological forma- tions is a well - established and intriguing fact . It is not known whether to inter- pret this absence as evidence that meteorites did not fall in earlier geological times or to look upon it as proof that such ...
Page 36
... recent of the geological formations.1 This dearth of specimens in ancient rocks is quite as noticeable for the supposed glass meteorites ( tektites ) as for the iron , stone- iron and iron - stone , and stone meteorites ( siderites ...
... recent of the geological formations.1 This dearth of specimens in ancient rocks is quite as noticeable for the supposed glass meteorites ( tektites ) as for the iron , stone- iron and iron - stone , and stone meteorites ( siderites ...
Page 338
... recent set being made during last sum- mer's school vacation . In recent years the only other astronomer follow- ing this technique has been Dr. Hamilton Jeffers , who has used the 36 - inch Lick Observatory refractor . I will close by ...
... recent set being made during last sum- mer's school vacation . In recent years the only other astronomer follow- ing this technique has been Dr. Hamilton Jeffers , who has used the 36 - inch Lick Observatory refractor . I will close by ...
Contents
FR SECCHI AND STELLAR SPECTRA MARTIN F MCCARTHY S J | 153 |
STRUCTURE AND COMPOSITION OF CANYON DIABLO | 169 |
RADIO WHISTLES SIDNEY VAN DEN BERGH | 177 |
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AAVSO absolute magnitudes absorption Adams American angle appeared Arizona Astronomical Society atmosphere August Barringer Meteorite Crater bright California Canyon Diablo circle classification College comet coördinates curve density Department of Astronomy determined diameter Diedrich Director dome earth eclipse equator Greenwich Harvard Harvard College Observatory Hertzsprung Holden instrument interest iron July June Jupiter latitude Lick Observatory lines luminosity mass maximum meeting meteor Meteoritic Falls Meteoritical Society Mexico minor planets moon motion Mount Wilson mountain Museum node Notes Nova observed OCCULTATIONS VISIBLE paper parallaxes photographic plates present President Professor radial velocity radiation recent refractor Rosebrugh Russell Saturn Schmidt schreibersite Secchi servatory shows solar specimens spectra spectral class spectroscopic spectrum SS Cygni stellar Sunspot surface Taur tektites telescope temperature theory tion University Variable Star velocity VISIBLE IN LONGITUDE Yerkes Yerkes Observatory