Treatise on marine and naval architecture; or, Theory and practice blended in ship building.

Front matter

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Chapter I. Chapter VII

Early History of Ship Building—The cause of its| The Author’s Discovery in obtaining the Centre of

Decline—Its Revival during the Middle Ages— Reasons why so little is known of the Art from History—Equilibrium of Fluids—Laws of Buoyancy elucidated—The Importance of Stability, and the Laws that Govern it.

Vessels of War less complex in their Construction than Merchant Vessels—The United States’ Navy behind the age—Ships of the Line expensive and inefficient—Frigates and Sloops-of-War—

War Steamers.

Chapter XII

Laws of Beauty and Taste—Heads and Sterns— Compend of all the Rules for Masting and Sparring vessels of all descriptions—the Author’s improve ments—Yachts.

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Preface

In the dedication of this work to the Shipwrights of the United States, the Author has no apology to offer.

* However much may have been published by Naval Architects in the old world, it is but too plain to the thinking mechanic that the science of Ship building is yet in its infancy.

The efforts of European authors to impart such information as shall meet the wants of operative mechanics, to qualify them for the responsibilities of builders, have thus far proved abortive both in the old and new world; the reasons are obvious. = *

The very limited amount of information their works contain upon the branches connected with the merchant service, in connexion with their complex character, and want of adaptation tothe technical terms used inthe United States, has proved, and must continue to a, a barrier to their extensive circulation in this country.

Comparatively few American mechanics bury their talents within the walls of a navy or dock yard, consequently, works on Naval Architecture are of little service in the western world. ‘The economy of our government exhibits the utility of a small, but efficient naval force, while maritime enterprise points to our merchant ships as the bulwark of her defence. To this enterprise we are indebted for the symmetry and efliciency accredited to American ships throughout the commercial world.

This work is designed to form the connecting link between science and practice, with a view to the elementary instruction of those who have not previously studied the principles of science in modelling and building ships.

But while it is designed as the novitiate’s guide, it will be found to contain much imformation adapted to all

‘branches of maritime enterprise ; not

8 sooo Sa Bl i he only the elementary principles, but all the departments of this science will be distinctly explained and illustrated by plates and diagrams. The subject of masting and sparring vessels, that has been considered beyond the grasp of scientific men, will be explained in its groper department. 4

Popularity has not been sought at the expense of science, nor brevity by the sacrifice of useful information and appropriate illustrations. The work contains not a few original improvements, and it is confidently believed that it will not only be found to embody in all departments, the latest improvements, but to be in advance of the age, in this complicated art.

Finally,in submitting the work to the judgment of the mechanical and mercantile community, the author may, perhaps, be allowed to say, that he has left no means untried that appeared likely to ensure the accuracy and excellence of the work.

JOHN W. GRIFFITHS.

MARINE-AND NAVAL ARCHITECTURE.

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