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Einiges aus der Geschichte der Astronomie im Alterthum ...

"Einiges aus der Geschichte der Astronomie im Alterthum" by Friedrich Blass is a...

Colour Measurement and Mixture by Sir William de Wivele...

"Colour Measurement and Mixture" by Captain W. de W. Abney is a scientific publi...

A Plan for Securing Observations of the Variable Stars ...

"A Plan for Securing Observations of the Variable Stars" by Edward C. Pickering ...

Warum und Weil. Physikalischer Teil. by Otto Ule

"Warum und Weil. Physikalischer Teil." by Otto Ule is a scientific publication w...

The evolution of worlds from nebulae by Lee Parker Dean

"The Evolution of Worlds from Nebulae" by Lee Parker Dean is a scientific public...

A Brief Account of Radio-activity by F. P. Venable

"A Brief Account of Radio-activity" by F. P. Venable is a scientific publication...

Remarks on a Pamphlet Lately published by the Rev. Mr. ...

"Remarks on a Pamphlet Lately published by the Rev. Mr. Maskelyne, Under the Aut...

A világegyetem élete és megismerésének története a legr...

"A világegyetem élete és megismerésének története a legrégibb időtől napjainkig"...

The Energy System of Matter: A Deduction from Terrestri...

"The Energy System of Matter: A Deduction from Terrestrial Energy Phenomena" by ...

Lecture on Artificial Flight by William G. Krueger

"Lecture on Artificial Flight" by William G. Krueger is a scientific publication...

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