📙 Excerpt from Journal für die Reine und Angewandte Mathematik, 1830, Vol. 5Kurze Darstellung der haupt-eigenschaften eines Systems von Linsen gläsern. Vom Herrn Prof. A. F. Möbius zu Leipzig. Solution d'une question relative i| la théorie mathématiqün de la chaleur. Par Mr. Lejeune-dirichlet, profi de mathem. Uber centrifugal-i'endd-uhm. Von Hrn. Th. Clausen zu Munchen. 131.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.