The Carnegie Institution of Washington published the Yearbook Number Five in 1906 and Number Six in 1907. These books contain a collection of scientific research and discoveries made by the institution during those years. The Yearbook Number Five includes articles on the study of the sun's corona, the measurement of the earth's magnetic field, and the discovery of new elements. The Number Six Yearbook covers topics such as the study of the earth's atmosphere, the behavior of metals under high temperatures, and the classification of stars. Both books provide an in-depth look at the scientific research and advancements made by the Carnegie Institution during the early 1900s.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.