"A horse- or steam-power machine for digging, moving, or transporting loose gravel, sand, or soil." -Whitney, 1911

Excavator

"A horse- or steam-power machine for digging, moving, or transporting loose gravel, sand, or soil."…

"Gaff. B, boom; CC, cheeks; G, gaff; M, mast; P, peak; T, throat or jaw. Nautical, a spar used to extend the upper edge of fore-and-aft sails which are not set on stays, as the mainsail of a sloop or spanker of a ship." -Whitney, 1911

Gaff Rig

"Gaff. B, boom; CC, cheeks; G, gaff; M, mast; P, peak; T, throat or jaw. Nautical, a spar used to extend…

"Gooseneck of a Spanker-boom. Nautical: (a) A sort of iron hook fitted to the inner end of a yard or boom, for temporary attachment to a clamp of iron or an eye-bolt." -Whitney, 1911

Gooseneck of Spanker-Boom

"Gooseneck of a Spanker-boom. Nautical: (a) A sort of iron hook fitted to the inner end of a yard or…

A triangular sail made of light canvas, used only in light winds and on yachts, set between the foretop mast head and the end of the jib boom.

Balloon Jib

A triangular sail made of light canvas, used only in light winds and on yachts, set between the foretop…

The torpedoes used by the Confederates were various in form and construction. The most efficient ones were the galvanic and percussion. The percussion or "sensitive" ones exploded by the act of forcible contact. Some of these were made in the form of a double cone, with percussion tubes arranged around the cylinder thus formed, at the point of contact of the bases of the cones.

Percussion Torpedo

The torpedoes used by the Confederates were various in form and construction. The most efficient ones…

"Shadow-sail, a sail designed to take the place of he regular jib-headed spinnaker ... a, shadow-sail; b, boom; c, after-boom guy." -Whitney, 1911

Shadow Sail

"Shadow-sail, a sail designed to take the place of he regular jib-headed spinnaker ... a, shadow-sail;…

A soldier, kneeling down preparing to throw a grenade.

Soldier, Kneeling, Throwing Grenade

A soldier, kneeling down preparing to throw a grenade.

A soldier lying in the prone position, throwing a grenade. In anatomy,the prone position is a position of the body lying face down.

Soldier, Prone, Throwing Grenade

A soldier lying in the prone position, throwing a grenade. In anatomy,the prone position is a position…

A soldier preparing to throw a grenade.

Soldier, Throwing Grenade

A soldier preparing to throw a grenade.