...Shell cylindrical, polished, spire conic acuminated, very short; outer lip simple, inner lip thickened, tumid, columella with numerous slender plaits, aperture at the base truncatedly emarginate... 
William Swainson 「Zoological Illustrations, Volume I」
...The curve which represents with perfect fidelity the movements of aplanet in its revolution around the sun belongs to that well-known groupof curves which mathematicians describe as the conic sections...
Robert Stawell Ball 「The Story of the Heavens」
...Theparticular form of conic section which denotes the orbit of a planet isknown by the name of the ellipse: it is spoken of somewhat lessaccurately as an oval...
Robert Stawell Ball 「The Story of the Heavens」
...The fact that the force varies as the inverse square of the distance,necessitates motion in an ellipse, or some other conic section, with thesun in one focus...
Oliver Lodge 「Pioneers of Science」
...To prove the connection between the inverse-square law of distance, andthe travelling in a conic section with the centre of force in one focus(the other focus being empty), is not so simple...
Oliver Lodge 「Pioneers of Science」
...Icalled it Seymour's Range, and a conic hill at its western end MountOrmerod...
Ernest Giles 「Australia Twice Traversed, The Romance of Exploration」
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