Excerpt from Sitzungsberichte der Mathematisch-Naturwissenschaftlichen Classe der Kaiserlichen Akademie der Wissenschaften, Vol. 69: I. Abtheilung, Jahrgang 1874, Heft I bis VOsservatorio del R. Collegio Carlo Alberto in Moncalieri Bollettino meteorologico. Vol. VIII, Nr. 7. Torino, 1873; Reichsanstalt, k. K. Geologische: Verhandlungen. Jahrgang 1873, Nr. 16. Wien; Repertorium für experimental-physik etc. Von Ph. Carl. IX. Band, 5. Heft. München, 1873; Revista de Portugal e Brazil. Nr. 5. Dezembro de 1873. Lisboa.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.