IT has been the aim of the Author, in preparing this work, to furnish a series of books that shall be of practical value to all who have to do with building operations, and especially to architects, draughtsmen and builders. In this volume an attempt has been made to describe those materials and methods of construction that come within the ordinary province of the carpenter, or are usually in-cluded in the carpenter's specifications.

In treating the various subjects that come within the scope of the book, the descriptive method used in Part I., with numerous illustrations, has been followed, as this appears to be the most practical method of accomplishing the end in view. But little space has been given to methods of determining the strength of materials, these having already been sufficiently covered in various works treating particularly of such matters, the especial aim of the author being rather to show how the various kinds of work should be done, what materials should be used and how the parts of buildings should be put together.

To do this in a manner that would be of sufficient practical value to warrant its being done at all, has required the making of a large number of detail drawings, which, while they have greatly increased the labor of preparation and delayed the publication, will, the author dares to believe, prove of great assistance to the young architect and draughtsman, and he trusts of some value to experienced architects and builders.

The illustrations may not be considered as models of draughtsmanship, but on a small scale are such as are usually required in making working drawings and in explaining the method of construction to be pursued. It is hoped that their value may be in proportion to the labor and thought that have been expended upon them.

The various materials employed by the carpenter, or with which he usually has to do, have also been carefully considered, with the view of enabling the architect and builder to employ them wisely, and to distinguish between the various kinds and qualities.

An especial effort has been made, in describing different forms of construction, not to follow entirely the methods of one section of the country, but rather to give the different methods pursued by different architects and in different localities, contrast them, and bring out their relative advantages. In this the author has been greatly assisted by many prominent architects, and by his own experience in both the Eastern and Western portions of the country.

The method of paragraphing the subjects followed in Part I. has been retained, partly for convenience in making cross references and also for greater convenience in the class room. Much pains have been taken to make the Index as complete as possible, using the most suggestive terms, so that any subject may readily be found.

In referring to the supervision of the work the author has attempted to call attention to the defects commonly found in building materials and to inferior methods of construction, and various ways in which the work is often slighted.

The general duties of a superintendent have been so well set forth in Mr. T. M. Clark's well-known work, "Building Superintendence," that it seems unwise to go more fully into this part of the subject, especially as the best preparation for efficient supervision is a thorough knowledge of how the work should be done, and that the author has tried to impart.

There are so many patented articles and devices used in connection with the carpenter's work that are not only desirable, but often absolutely necessary to the proper equipment of a building, and with which, therefore, the architect should be acquainted, that it has been necessary to describe or refer to quite a number, but only such have been recommended as have been thoroughly investigated, or which the author has successfully used in his own practice.

In conclusion, the author wishes to acknowledge the great assistance he has received from various architects, and especially from Prof. C. A. Martin, of Cornell University, in regard to various details of construction, and also from several manufacturers of builders' hardware for information and illustrations.

The author will appreciate any suggestions that may be made looking to the improvement of future editions, or any corrections of errors that may be discovered.

F. E. KIDDER.

Denver, August 1, 1898.