TO THE THIRD ENGLISH EDITION.
THIS edition includes all that is in the seventh German edition. The principle changes since the fourth German edition, from which the second English edition was made, consist in the figures which have been added and in additions to the text which appear in this volume on the following pages: 34, 36-37, 44-46, 53, 54-55, 58, 64, 69-70, 76-77, 82-83, 96-97, 105, 109, 111-112, 128-129, 132, 139-140, 142, 151, 154-155, 166-167, 209, 223, 224, 225-227, 235-237, 239-242, 246, 279-281, 364-365, 367. Minor revisions need not be especially noted as they do not modify the essential character of the book. Advantage has been taken of the opportunity afforded by a resetting of the type to make a thorough revision of the English. This has not, however, led to any changes in terminology as compared with earlier editions.
- New Haven, 1907.
