...So mathematically straight was it that only when perspective closed it in, or when it dropped over the summit of a little rise, did the eye lose the effect of its interminability... 
Stewart Edward White 「African Camp Fires」
...According to every convention of building, the Cathedral is not onlyartistically poor, but mathematically insupportable...
Elise Whitlock Rose 「Cathedrals and Cloisters of the South of France, Volume 1」
... shook his head impatiently, staring at the so-simple, yet incredible device whose theory had been mathematically proven numberless times, but never put into practice before...
Various 「Astounding Stories of Super-Science January 1931」
...It has beenindicated mathematically (by formulae based on conjecture),but never actually solved—for the very good reason that itis impossible to reproduce spacial conditions in earthlylaboratories...
Various 「Astounding Stories, July, 1931」
...By thisarrangement the sun was situate mathematically near the centre of the planetarysystem, but he did not appear to have any physical connexion with the planetsas the centre of their motions...
George Forbes 「History of Astronomy」
...Laplace and Leverrier proved mathematically that in 1767 it had approached so close to Jupiter as to be involved among the orbits of his satellites...
Garrett Serviss 「Curiosities of the Sky」
...It is mathematically demonstrable thatthis arc of light is precisely what should be seen if Venus has anatmosphere like our earth's...
Richard A. Proctor 「Myths and Marvels of Astronomy」
...It had,however, previously been investigated mathematically by Titius in 1772...
Cecil G. Dolmage 「Astronomy of To-day」
...Even if all the observations and the reductions of a parallaxseries were mathematically correct, we could not with strict proprietydescribe the final result as the parallax of one star...
Robert Stawell Ball 「The Story of the Heavens」
...Laplace mathematically demonstrated that it cannot be uniform andsolid, and survive...
Henry Warren 「Recreations in Astronomy」
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