Excerpt from Supplement to the Fourth, Fifth, and Sixth Editions of the Encyclopaedia Britannica, Vol. 3: With Preliminary Dissertations on the History of the Sciences; Illustrated by Engravings Playfair's Dissertation on the Progress of the Mathematical and Sciences, will accompany the First Half of the F ifth Volume. I. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at www.forgottenbooks.com This 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.

Reprint of the original, first published in 1871.

Reprint of the original, first published in 1870.