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A recent investigator of the distribution of luminosity in the great nebula of Orion finds that radiations from nebulium are confined chiefly to the Huygenian region of the nebula and its immediate neighborhood.

The other element, to which he gives the name Nebulium, will have an atomic weight of 2·1.

Certain unfamiliar lines in the spectra of far off nebulae have long been thought by astronomers to be made by a mysterious element which they called nebulium.

Accordingly they created by mutual consent a new element, called it "nebulium," and doubted that it existed.

To this Sir William Huggins has given the provisional name of "Nebulium."