The Absorption Spectrum of Dense Lithium Vapor

Thirty-five new lines or diffuse bands appeared in the neighborhood of the principal series lines of lithium absorption spectrum were measured. The temperature of the absorption tube was 850-1040^∘{}C. He, Ne, and A were used to lessen the speed of distillation of lithium to the cooler part of the tube. The appearance and the position of these lines or bands are not influenced by the nature of the foreign gas employed.