ClipArt ETC
"The Common Barnacle, <em>Lepas anatifera</em>, perhaps the best-known example of the order, generally selects floating objects for this purpose, and frequently covers the bottoms of ships to such an extent as to even impede their progress through the water. It adheres by a flexible stalk, which possesses great contractile power. The shell is usually composed of two triangular pieces on each side, and is closed by another elongated piece on the back." &mdash; Goodrich, 1859

Barnacles

"The Common Barnacle, Lepas anatifera, perhaps the best-known example of the order, generally…

"When one is at sea, or standing on the sea-shore, the first part of a ship seen at a distance, is its mast. As the bessel advances, te mast rises higher and higher above the horizon, and finally the hull, and whole ship, become visible. Now, were the Earth's surface an exact plane, no such appearance would take place, for we should then see the hull long before the mast or rigging, because it is much the largest object." -Comstock 1850

Spheroidal Form of the Earth

"When one is at sea, or standing on the sea-shore, the first part of a ship seen at a distance, is its…

Three men at work grinding scissors.

Grinding Hull

Three men at work grinding scissors.

"G, G, gunwale; K, keel; T, thwart. GUNWALE, GUNNEL. Naut., the upper edge of a ship's side; the uppermost wale of a ship, or that piece of timber which reaches on either side from the quarter-deck to the forecastle, being the uppermost bend which finishes the upper works of the hull." -Whitney, 1911

Gunwale

"G, G, gunwale; K, keel; T, thwart. GUNWALE, GUNNEL. Naut., the upper edge of a ship's side; the uppermost…

A medal awarded to soldiers, in honor of Isaac Hull.

Hull Medal

A medal awarded to soldiers, in honor of Isaac Hull.

the term light hull is used to describe the outer hull of a submarine, which houses the pressure hull, providing hydro dynamically efficient shape

Submarine Hull

the term light hull is used to describe the outer hull of a submarine, which houses the pressure hull,…

Merchant Sailing Ship

"A small sail set under another, or between two other sails, to catch or save the wind." &mdash;Whitney, 1889 <p>This illustration shows the save-all labeled with an "a". The hull of the boat as well as other sails and masts are visible.

Save-All, or Catch-All

"A small sail set under another, or between two other sails, to catch or save the wind." —Whitney,…

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding through the hull of a vessel at the stern. It consists of a number of spiral metal blades either cast together in one piece or bolted to a hub... D, diagrammatic view of hull of a screw propeller ship, in which k shows position of boilers; l, the engines; f, propeller shaft; e, thrust block; g, propeller." &mdash;Whitney, 1889

Screw Propeller Ship, Diagrammatic View of the Hull

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding…

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding through the hull of a vessel at the stern. It consists of a number of spiral metal blades either cast together in one piece or bolted to a hub... C, cross section of blade, on larger scale." -Whitney, 1889

Screw Propeller, Cross Section of a Blade

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding…

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding through the hull of a vessel at the stern. It consists of a number of spiral metal blades either cast together in one piece or bolted to a hub. A. sectional elevation, the section being through shaft and hub, showing method of attaching blades h by bolts i." —Whitney, 1889

Screw Propeller, Sectional Elevation

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding…

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding through the hull of a vessel at the stern. It consists of a number of spiral metal blades either cast together in one piece or bolted to a hub. Side elevation." —Whitney, 1889

Screw Propeller, Side Elevation

"A propeller acting on the principle of the screw, attached to the exterior end of a shaft protruding…