Excerpt from Further Description and Analysis of the First Spectrum of XenonThe list of Xc I wave lengths as finally adopted is presented in Table 1. After eliminating known lines due to Xc 11, faint unclassified lines of doubtful origin, and identifiable Rowland ghosts, we have retained 538 lines. The real lines were in practically all cases distinguished from false lines or ghosts by repeated observations with different gratings. With but 13 exceptions, all of the lines are accounted for by combinations'of identified spectral terms. The calculated values of the wave numbers of all classified lines, computed from the experimental terms, are also given in Table 1, and indicate the degree of accuracy of the wave - length determinations.About the PublisherForgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.comThis book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully, any imperfections that remain are intentionally left to preserve the state of such historical works.