📓 Excerpt from Recherches sur les Modifications de l'Atmosphere, Vol. 4: Contenant l'Histoire Critique du Baromètre Et du Thermomètre, un Traité sur la Construction de Ces Instrumens, des Expériences Relatives à Leurs Usages, Et Principalement à la Mesure des Hauteurs Et à la Correction des Réfractions MoyennesM oyen de con naître sûrement la p:jänt:ut jÿecifiqw aäuell: de l' air.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.