A year ago last winter, Prof. Guyot deliver-ed a course of lectures in this city, purporting to be at the request of a number of orthodox ministers and others, in which he inculcated the nebular ...

THE hypothesis that the lines of unknown origin in the spectra of nebulæ are due to the atom of some hitherto undiscovered element (“ nebulium ”) is not the only one that may be advanced. The recently ...

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