IN answer to Mr. J. Hopkins Walters' inquiry contained in NATURE, vol. xxv. p. 103, the spectroscope declares that all these three spectra have for their base a continuous strip or band of light; in ...

LONDON. Royal Society, November 23.— Sir Archibald Geikie, K.C.B., president, in the chair.—Sir Norman Lockyer: The iron flame spectrum and those of sun-spots and lower-type stars. Previous ...