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"At that time the only species of navigation known to the Greeks consisted of small boats or canoes hollowed out from trunks of trees, so that when Jason employed Argos to build him a vessel capable of containing fifty men, it was considered a gigantic undertaking." —Bulfinch, 1897

Building the Argo

"At that time the only species of navigation known to the Greeks consisted of small boats or canoes…

Argonaut, sectional view submerged, 1901. Man in conning-tower making observations. Second man steering the third wheel which rests on the ocean bottom. Water tanks are filled when descending and pumped dry when ready to come up.

Argonaut, sectional view

Argonaut, sectional view submerged, 1901. Man in conning-tower making observations. Second man steering…

Argonaut, side view submerged, 1901. Key: C-driving wheel, E-rudder and guiding wheel, G-air lock, K-compartment for searchlight, L-forward lookout compartment, M-gasoline tanks, N-compressed air reserve, O-water ballast, S-conning-tower, T-compass, U-outside steering gear.

Argonaut, side view

Argonaut, side view submerged, 1901. Key: C-driving wheel, E-rudder and guiding wheel, G-air lock, K-compartment…

"A genus of cephalapodous mollusca, pretty generally known by the name of Paper Nautilus, and in consequence of similarity in the form of the shell, often confounded with the genus Nautilus, but in fact much more nearly allied to the Poulpe (Octopus)." — Chambers' Encyclopedia, 1875

Argonaut

"A genus of cephalapodous mollusca, pretty generally known by the name of Paper Nautilus, and in consequence…

The paper nautilus or argonaut, a cuttlefish.

Argonaut

The paper nautilus or argonaut, a cuttlefish.

"Argonaut with the shell." — Goodrich, 1859

Argonaut (with shell)

"Argonaut with the shell." — Goodrich, 1859

"The argonaut retired within its shell." — Goodrich, 1859

Argonaut (within shell)

"The argonaut retired within its shell." — Goodrich, 1859

"Argonaut without the shell." — Goodrich, 1859

Argonaut (without shell)

"Argonaut without the shell." — Goodrich, 1859

The greater argonaut (Argonauta argo) is a cephalopod and a species of pelagic octopus also known as a paper nautilus.

Greater Argonaut

The greater argonaut (Argonauta argo) is a cephalopod and a species of pelagic octopus also known as…

"The Paper-nautilus, or Argonaut, [floats] gracefully on the surface of the sea, trimming its tiny sail to the breeze, just sufficient to ruffle the surface of the waves, it looks like an exquisite living shallop."

Argonauto Argo (Linnaeus)

"The Paper-nautilus, or Argonaut, [floats] gracefully on the surface of the sea, trimming its tiny sail…

"The argonaut can blush, turn pale, and show through its transparent shell its body changing in sudden shades."

Argonauta Papyracea in its Shell

"The argonaut can blush, turn pale, and show through its transparent shell its body changing in sudden…

"The principal apparatus of progression of the animal is the funnel with which it is furnished, in common with all Cephalopods, and which is very long in the argonaut. Aided by this apparatus, it ejects water after it has served the purpose of respiration, and in doing so, projects itself through the water."

Argonauta Papyracea Swimming

"The principal apparatus of progression of the animal is the funnel with which it is furnished, in common…

"Athena (Minerva) superintending the building of the Argo." — Smith, 1882

Athena and Argo

"Athena (Minerva) superintending the building of the Argo." — Smith, 1882

A sub-kingdom of animals embracing a division of the invertebrates. It includes especially those having an unsegmented bilateral body; four nervecords arranged in pairs, two visceral and two pedal, with lateral and medial abdominal ganglia.

Mollusca

A sub-kingdom of animals embracing a division of the invertebrates. It includes especially those having…

The nautilus is a true mollusc. (a) mantle; (o) eye; (t) tentacles; (f) funnel.

Nautilus

The nautilus is a true mollusc. (a) mantle; (o) eye; (t) tentacles; (f) funnel.

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in which it hides when disturbed.

Paper Nautilus

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in…

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in which it hides when disturbed.

Paper Nautilus

The paper nautilus is closely related to the octopus. It creates its own thin shell, or egg case, in…

The paper-nautilus is closely related to the Octopus.

Paper Nautilus

The paper-nautilus is closely related to the Octopus.

"The Paper Nautilus (Argonauta argo). e, eye; m, mouth; f, siphon; sh, shell; t, tentacles." -Galloway, 1915

Paper Nautilus

"The Paper Nautilus (Argonauta argo). e, eye; m, mouth; f, siphon; sh, shell; t, tentacles." -Galloway,…