"Brief table of contents of vols. I-XX" in v. 21, p. [502]-618.

Excerpt from Studies in the History and Method of Science, Vol. 2 The first volume of this series appeared in the autumn of 1917. The editor was unable to see it through the press owing to his absence from England on military duty. A Preface was accordingly provided by Sir William Osler, who, unhappily, has not lived to see the growing success that has attended the ideas he expressed there with so much force, and towards which he contributed life-long thought and effort. The volume was received with an approval that far surpassed the hopes of its editor and the issue was rapidly exhausted. In the present collection an endeavour has been made to avoid some defects inevitable in the earlier volume. The undue prominence given to mediaeval studies will be found in part corrected and care has been taken to give more space to the evolution of the mathematical and exact sciences, though the balance is yet far from being fully redressed. 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.

The fifth volume of Dr Needham's immense undertaking, like the fourth, is subdivided into parts for ease of assimilation and presentation, each part bound and published separately. The volume as a whole covers the subjects of alchemy, early chemistry, and chemical technology (which includes military invention, especially gunpowder and rockets; paper and printing; textiles; mining and metallurgy; the salt industry; and ceramics).