now offered to the public, makes it proper to assign to the several collaborators the
credit due for their respective shares in its preparation.

To Mr. Lewis R. Hamersly, who saw service with the navy during the war of
the Rebellion, and who, as the compiler of "The Records of Living Officers of the
Navy," and as the head of the military and naval publishing house of L. R. Ham-
ersly & Co., is well known to the naval profession, credit is due for the conception
and plan of the work, and also for the preparation of the general mass of records
of officers which it contains.

On Lieutenant J. W. Carlin has devolved the main burden of the editorial
conduct of the work. Besides numerous articles in other departments, he has ex-
clusively written or compiled the astronomical articles and definitions, as also the
entire mass of nautical definitions not herein specifically credited to others.

Medical Director Edward Shippen, whose biographical sketches of distin-
guished naval men of our own and former times constitute a feature of the work,
has, besides the articles bearing his signature, given it the benefit of his editorial
assistance in ways that have contributed largely to improve and perfect it.

Rear-Admiral George Henry Preble, besides the articles which appear over his
signature, has contributed the definitions of naval titles, and has greatly assisted the
work by his advice and encouragement.

Chief Engineer Albert Aston has contributed the general mass of definitions
relating to machinery and steam-engineering, and Passed Assistant Engineer L. W.
Robinson has also made valuable contributions to the same department.

To Naval Constructor S. H. Pook belongs the credit of having furnished the
definitions of the terms pertaining to ship-building.

Lieutenant E. T. Strong, in addition to the articles signed by him, has con-
tributed the definitions of nautical and naval terms which occur under the letters
K, L, and T, respectively.

Lieutenant F. S. Bassett, in addition to the articles which appear over his sig-
nature, has compiled, or written, the greater part of the definitions included under
the alphabetical headings F, S, W, and X.

In several departments of the work Colonel George A. Woodward, U.S.A.,
has assisted by contributions and editorial supervision.

The following is a list of the principal works consulted in the preparation of
this volume: Smyth's Sailor's Word-book, Falconer's Marine Dictionary, Burn's
Naval and Military Technical Dictionary, Cooper's Naval History, Bedford's
Sailor's Pocket-book, Luce's Seamanship, Nares's Seamanship, Totten's Naval Text-
book, Dana's Seaman's Friend, Harbord's Glossary of Navigation, Bowditch's
Navigator, Loomis's Astronomy, Peabody's Astronomy, Proctor's Hand-book of
the Stars, Cooke's Naval Gunnery, Ordnance Instructions (1880), Lippincott's
Gazetteer, Wilson's Ship-building, Very's Navies of the World, King's War-ships
and Navies of the World, Knight's Mechanical Dictionary, Sleeman's Torpedoes and
Torpedo Warfare (Electricity), Myer's Manual of Signals, Navy Regulations, Web-
ster's Dictionary, Worcester's Dictionary, Brande's Encyclopedia, Chambers's En-
evelopædia, Appleton's Encyclopædia, Johnson's Encyclopædia, Kent's Commen-
taries, Sharswood's Blackstone.

BLOODGOOD, DELAVAN, Medical Inspector DULIN, JAMES C.