$a Astronomie / von N. Lockyer. - 7., durchaus umgearb., verb. und verm. Aufl. - Strasburg ; Berlin, 1906.
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$a The meteoritic hypothesis : a statement of the results of a spectroscopic inquiry into the origin of cosmical systems / by J. Norman Lockyer. - London ; New York, 1890. $b (Prof. of Astronomical Physics in the normal school of science)