Which preposition to use with spectra
To go deeper into this matter, to speculate upon the possible germs, the first vague intimations to the mind of Coleridge of the weird spectra of "The Ancient Mariner," the phantasmagoria of "Kubla Khan," would be, perhaps, over-refining.
KEENAN, PHILIP C. An atlas of stellar spectra with an outline of spectral classification.
Theoretical chemistry: an introduction to quantum mechanics, statistical mechanics, and molecular spectra for chemists.
Until very lately, the spectra in the original negatives were made very narrow, since otherwise the intensity of the starlight would have been insufficient to produce the proper decomposition of the silver particles.
Our methods of enlargement have been considered, and some of them tried, with the object of removing the irregularities of the original spectra without introducing new defects.