VIII. Notice of an observation of the spectrum of a solar prominence, by J. N. Lockyer, Esq., in a letter to the secretary. Communicated by Dr. Sharpey

Abstract

Sir,— I beg to anticipate a more detailed communication by informing you that, after a number of failures, which made the attempt seem hopeless, I have this morning perfectly succeeded in obtaining and observing part of the spectrum of a solar prominence. As a result I have established the existence of three bright lines in the following positions.