...The mouth was a round or oval orifice,and when illuminated by the parabola, its lips ormargin looked thickened, and of a pale blue, andciliated, while the rest of the body assumed a pinkishpearly tint... 
Henry J. Slack 「Marvels of Pond-life」
...It isn’t a parabola and it isn’t anellipse...
Various 「Astounding Stories of Super-Science, March 1930」
...The priests were now upon the dais—the rocky platform, divided by thegreat, glowing parabola of light...
Various 「Astounding Stories of Super-Science, June, 1930」
...From thepoint of view of the importance of finding out the divergence of a cometaryorbit from a parabola, its period, and its aphelion distance, this increase ofrange attains the very highest value...
George Forbes 「History of Astronomy」
...It will here be only necessary to point to the connectionwhich exists between the parabola and the ellipse...
Robert Stawell Ball 「The Story of the Heavens」
...It had been observed in 1786, 1795, and1805, but on these occasions it had not been noticed that the comet'spath deviated from the parabola...
Robert Stawell Ball 「The Story of the Heavens」
...Theexcentricity of its orbit is enormous—in other words, it is either avery elongated ellipse or a parabola...
Oliver Lodge 「Pioneers of Science」
...Hevelius made numerous researches on comets, and suggested that theform of their paths might be a parabola...
Thomas Orchard 「The Astronomy of Milton's 'Paradise Lost'」
...The characteristic feature of the movement in a parabola may be thusdescribed...
Robert Stawell Ball 「The Story of the Heavens」
...This comet followed a path whichcould not be certainly distinguished from a parabola, though there is nodoubt that it might have been a very elongated ellipse...
Robert Stawell Ball 「The Story of the Heavens」
...As a matter of fact the path of a projectile in vacuo is onlyapproximately a parabola...
Oliver Lodge 「Pioneers of Science」
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