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"Asp, as an Egyptian royal symbol.- Seti I., father of Rameses II."-Whitney, 1902

Asp

"Asp, as an Egyptian royal symbol.- Seti I., father of Rameses II."-Whitney, 1902

"Asparagus-Beetle (Crioceris asparagi). a,b,d and e, beetle eggs, and larvæ, natural size; c and f, eggs and larva, enlarged."-Whitney, 1902

Asparagus Beetle

"Asparagus-Beetle (Crioceris asparagi). a,b,d and e, beetle eggs, and larvæ, natural size; c and…

"Subangular Ground-beetle (Aspidoglossa subangulata). Vertical line shows natural size."-Whitney, 1902

Subangular Ground Beetle

"Subangular Ground-beetle (Aspidoglossa subangulata). Vertical line shows natural size."-Whitney, 1902

"Leather-back Turtle, also known as Soft-Shelled.-Whitney, 1902

Leather-back Turtle

"Leather-back Turtle, also known as Soft-Shelled.-Whitney, 1902

"River-Crawfish (Astacus fluviatilis). (From Huxley's "Crayfish.")"- Whitney, 1902

Crawfish

"River-Crawfish (Astacus fluviatilis). (From Huxley's "Crayfish.")"- Whitney, 1902

"Astarte sulcata; In some systems of zoological classification, a family of dimyarian bi-valves, an external ligament, cardinal teeth, and also lateral teeth on each valve, the pallial line entire, the muscular scars ovate, and a distinct pedal scar above the anterior muscular one."-Whitney, 1902.

Astarte sulcata

"Astarte sulcata; In some systems of zoological classification, a family of dimyarian bi-valves, an…

"Astarte borealis semisulcata. p,p', anterior and posterior pedal muscle."-Whitney, 1902.

Astarte sulcata

"Astarte borealis semisulcata. p,p', anterior and posterior pedal muscle."-Whitney, 1902.

"Common Starfish (Asterias forbesi)."-Whitney, 1902.

Common Starfish

"Common Starfish (Asterias forbesi)."-Whitney, 1902.

"Sir Francis Drake's Astrolabe; an obsolete astronomical instrument of different forms, used for taking the altitude of the sun or stars, and for the solution of other problems in astronomy. "-Whitney, 1902.

Astrolabe

"Sir Francis Drake's Astrolabe; an obsolete astronomical instrument of different forms, used for taking…

"American Goshawk (Astur atricapillus)."-Whitney, 1902.

Goshawk

"American Goshawk (Astur atricapillus)."-Whitney, 1902.

"Aswail, or Sloth-Bear (Prochilus labiatus)."-Whitney, 1902.

Aswail

"Aswail, or Sloth-Bear (Prochilus labiatus)."-Whitney, 1902.

"Atef-crown borne by the deity Khnum."-Whitney, 1902.

Atef Crown

"Atef-crown borne by the deity Khnum."-Whitney, 1902.

"Ateleopus japonicus."-Whitney, 1902.

Ateleopus

"Ateleopus japonicus."-Whitney, 1902.

"Newcomen's Atmospheric Steam-Engine. A, A, working-beam; B, boiler from which steam is admitted through the steam-cock; c, to the cylinder C; F, rod, serving to lift a small pump; i, injection-cock; P, piston; S, blow-valve, or snifting-valve; T, tank; W, weights."-Whitney, 1902.

Steam Engine

"Newcomen's Atmospheric Steam-Engine. A, A, working-beam; B, boiler from which steam is admitted through…

"Atypus sulzeri. (Vertical line shows natural size.)"-Whitney, 1902.

Atypus

"Atypus sulzeri. (Vertical line shows natural size.)"-Whitney, 1902.

"[Left] Cook's Auger; [Right] Expanding Auger."-Whitney, 1902.

Augers

"[Left] Cook's Auger; [Right] Expanding Auger."-Whitney, 1902.

"[Left] Post-hole Auger; [Right] Earth-boring Auger."-Whitney, 1902.

Augers

"[Left] Post-hole Auger; [Right] Earth-boring Auger."-Whitney, 1902.

"Among the anceient Romans, a functionary whose duty it was to observe and to interpret, according to traditional rules, the auspices, or reputed natural signs concerning future events."-Whitney, 1902.

Auger

"Among the anceient Romans, a functionary whose duty it was to observe and to interpret, according to…

"An italian gold coin, weighing from 30 to 40 grains, issued in the thirteenth century by emperor Frederick II."-Whitney, 1902.

Augustal

"An italian gold coin, weighing from 30 to 40 grains, issued in the thirteenth century by emperor Frederick…

"Crested Auklet (Simorhynchus cristatellus)."-Whitney, 1902.

Crested Auklet

"Crested Auklet (Simorhynchus cristatellus)."-Whitney, 1902.

"Ground-pig (Aulacodus swinderianus)."-Whitney, 1902.

Groundpig

"Ground-pig (Aulacodus swinderianus)."-Whitney, 1902.

"Auletris.- Performer on the double flute or diaulos. (From a Greek red-figured vase; 5th century B.C.)"-Whitney, 1902.

Auletris

"Auletris.- Performer on the double flute or diaulos. (From a Greek red-figured vase; 5th century B.C.)"-Whitney,…

"Aulostoma chinense."-Whitney, 1902.

Aulostoma

"Aulostoma chinense."-Whitney, 1902.

"Ear-Shell (Auricula judæ)."-Whitney, 1902.

Ear-Shell

"Ear-Shell (Auricula judæ)."-Whitney, 1902.

Politican, financier and founder of the famous Whitney family.

William Collins Whitney

Politican, financier and founder of the famous Whitney family.

A machine seed in separating the seeds from the cotton fiber.

Cotton Gin

A machine seed in separating the seeds from the cotton fiber.

An inventor, born in Westborough, Mass., Dec. 8, 1765; died in New Haven, Conn., Jan. 8, 1825.

Eli Whitney

An inventor, born in Westborough, Mass., Dec. 8, 1765; died in New Haven, Conn., Jan. 8, 1825.

Eli Whitney's cotton gin, which made the production of cotton many times more efficient.

Cotton Gin

Eli Whitney's cotton gin, which made the production of cotton many times more efficient.

Invented by Eli Whitney, the cotton gin is a machine that quickly separates the cotton from the seeds.

Cotton Gin

Invented by Eli Whitney, the cotton gin is a machine that quickly separates the cotton from the seeds.

Henry Whitney Bellows was an American clergyman, and the planner and president of the United States Sanitary Commission, the leading soldiers' aid society, during the American Civil War.

Henry Whitney Bellows

Henry Whitney Bellows was an American clergyman, and the planner and president of the United States…

A Cotton Gin (short for cotton engine) is a machine that quickly and easily separates the cotton fibers from the seedpods and the sometimes sticky seeds, a job previously done by workers. These seeds are either used again to grow more cotton or, if badly damaged, are disposed of. It uses a combination of a wire screen and small wire hooks to pull the cotton through the screen, while brushes continuously remove the loose cotton lint to prevent jams. The term "gin" is an abbreviation for engine, and means "machine".

Cotton Gin

A Cotton Gin (short for cotton engine) is a machine that quickly and easily separates the cotton fibers…

"Branch with flowers of Salvadora persica. (a), a female flower; (b), the fruit." -Whitney, 1911

Toothbrush Tree

"Branch with flowers of Salvadora persica. (a), a female flower; (b), the fruit." -Whitney, 1911

"A parasitic isopod crustacean, Aega psora, and some similar forms." -Whitney, 1911

Salve Bug

"A parasitic isopod crustacean, Aega psora, and some similar forms." -Whitney, 1911

"Flowers of Phlox drummondii showing salver-shaped corolla." -Whitney, 1911

Annual Phlox

"Flowers of Phlox drummondii showing salver-shaped corolla." -Whitney, 1911

"Branch with Inflorescence of Elder (Sambucus Canadensis). (a), part of the inflorescence; (b), fruits." -Whitney, 1911

American Elderberry

"Branch with Inflorescence of Elder (Sambucus Canadensis). (a), part of the inflorescence; (b), fruits."…

"Upper part of stem with the inflorescence of Samphire (Crithmum maritimum). (a), a flower; (b), the fruit; (c), transverse section of one of the fruitlets." -Whitney, 1911

Rock Samphire

"Upper part of stem with the inflorescence of Samphire (Crithmum maritimum). (a), a flower; (b), the…

"Sanderling (Calidris arenaria), in breeding plumage." -Whitney, 1911

Sanderling

"Sanderling (Calidris arenaria), in breeding plumage." -Whitney, 1911

"Flowering plant of sanicle (Sanicula marilandica). (a), a male flower; (b), the fruit." -Whitney, 1911

Maryland Black Snakeroot

"Flowering plant of sanicle (Sanicula marilandica). (a), a male flower; (b), the fruit." -Whitney, 1911

"Cordyline (Sansevieria) hyacinthoides. (a), flower; (b), fruit." -Whitney, 1911

Cordyline

"Cordyline (Sansevieria) hyacinthoides. (a), flower; (b), fruit." -Whitney, 1911

"Branch with fruits of Sapindus drummondi. a, a flower." -Whitney, 1911

Western Soapberry

"Branch with fruits of Sapindus drummondi. a, a flower." -Whitney, 1911

"Sapodilla (Sapota zapotilla). (a), the fruit; (b), the same, transversely cut." -Whitney, 1911

Sapodilla

"Sapodilla (Sapota zapotilla). (a), the fruit; (b), the same, transversely cut." -Whitney, 1911

"Greasewood (Sarcobatus vermiculatus). 1, with female flowers; 2, branch with fruits; a, a female flower; b, the fruit." -Whitney, 1911

Greasewood

"Greasewood (Sarcobatus vermiculatus). 1, with female flowers; 2, branch with fruits; a, a female flower;…

"Sarcophagus from the Street of Tombs at Assos in the Troad, excavated by the Archaeological Institute of America." -Whitney, 1911

Sarcophagus

"Sarcophagus from the Street of Tombs at Assos in the Troad, excavated by the Archaeological Institute…

"Branch of Sarsaparilla (Smilax medica), with fruits." -Whitney, 1911

Sarsaparilla

"Branch of Sarsaparilla (Smilax medica), with fruits." -Whitney, 1911

"Sassafras (Sassafras sassafras). 1. Branch with fruits. 2. Branch with sterile flowers. a, b, c, different forms of leaves." -Whitney, 1911

Sassafras

"Sassafras (Sassafras sassafras). 1. Branch with fruits. 2. Branch with sterile flowers. a, b, c, different…

"Nodal Cubic, with four primary lines and their satellite. In the diagram, ABC is the satellite line. From its intersections with the cubic curve tangents are drawn to the latter, AD, AE, BF, BG, CH, CI. The points of tangency lie three by three on four primary lines, FDH, DGI, EGH, FEI." -Whitney, 1911

Satellite

"Nodal Cubic, with four primary lines and their satellite. In the diagram, ABC is the satellite line.…

"Saurognathous skull of woodpecker (Colaptes auratus). v, v, the posterior parts of the abortive vomer; s, point of sphenoid; mxp, maxillopalatine; pt, pterygoid; me, ossified mesethmoid; pl, palatine; q, quadrate; bt, basitemporal; fm, foramen magnum. The posterior part of one palatine is cut away to show the long anterior projection of the pterygoid." -Whitney, 1911

Woodpecker Skull

"Saurognathous skull of woodpecker (Colaptes auratus). v, v, the posterior parts of the abortive vomer;…

"One of a family of ganoid fishes including the lepidosteids and various extinct forms." -Whitney, 1911

Sauroid

"One of a family of ganoid fishes including the lepidosteids and various extinct forms." -Whitney, 1911

"Flowering branch of Lizardtail (Saururus cernuus). a, flower." -Whitney, 1911

Lizard's Tail

"Flowering branch of Lizardtail (Saururus cernuus). a, flower." -Whitney, 1911

"Flowering plant of saxifrage (Saxifraga virginiensis). a, a flower; b, the fruit." -Whitney, 1911

Early Saxifrage

"Flowering plant of saxifrage (Saxifraga virginiensis). a, a flower; b, the fruit." -Whitney, 1911

"A small covered brazier of glazed earthenware, used in Italy." -Whitney, 1911

Scaldino

"A small covered brazier of glazed earthenware, used in Italy." -Whitney, 1911

A variety of leaves with scales: "a, the scale-like leaves of the stem of Lathraea squamaria (toothwort); b, the cone with the scales of Cupressus sempervirens (Mediterranean Cypress); c, the imbricate scale-like bract of the spike of Cyperus longus (common galingale)." -Whitney, 1911

Scaled Leaves

A variety of leaves with scales: "a, the scale-like leaves of the stem of Lathraea squamaria (toothwort);…

"Scales from wing of butterfly (Vanessa antiopa), highly magnified. 1, from border of anterior wing, above." -Whitney, 1911

Butterfly Scale

"Scales from wing of butterfly (Vanessa antiopa), highly magnified. 1, from border of anterior wing,…

"Scales from wing of butterfly (Vanessa antiopa), highly magnified. 2, from border of anterior wing, below." -Whitney, 1911

Butterfly Scale

"Scales from wing of butterfly (Vanessa antiopa), highly magnified. 2, from border of anterior wing,…

"a, Scales of Chionaspis pinifoliae upon pine-leaves, natural size; b, scale of male, enlarged; c, straight scale of female, enlarged; d, curved scale of female, enlarged." -Whitney, 1911

Pine Needle Scale

"a, Scales of Chionaspis pinifoliae upon pine-leaves, natural size; b, scale of male, enlarged; c, straight…

Small plates are sewn onto cloth, overlapping. "Scale-armor of the Early Middle Ages." -Whitney, 1911

Scale Armor

Small plates are sewn onto cloth, overlapping. "Scale-armor of the Early Middle Ages." -Whitney, 1911

"Scale-mosses. 1, Ptilidium ciliare (fringewort); 2, Lophocolea minor (liverwort)." -Whitney, 1911

Liverworts

"Scale-mosses. 1, Ptilidium ciliare (fringewort); 2, Lophocolea minor (liverwort)." -Whitney, 1911

"Scale-insect. Oyster-shell bark-louse of the apple (Mytilaspis pomorum); male. a, ventral view with wings closed; b, dorsal view with wings expanded; c, scale (line shows natural size); d, leg; f, antennal joint." -Whitney, 1911

Scale Insect

"Scale-insect. Oyster-shell bark-louse of the apple (Mytilaspis pomorum); male. a, ventral view with…

A scape is a flowering, leafless stem; shown here on two different plants. "1. Wild hyacinth (Scilla nonscripta). 2. Oxlip (Primula elatior). s, s, scapes." -Whitney, 1911

Scapes

A scape is a flowering, leafless stem; shown here on two different plants. "1. Wild hyacinth (Scilla…

Scaphites equalis is a species of extinct cephalopods that thrived during the Cretaceous period. "A genus of ammonites, or fossil ammonoid cephalopods of scaphoid shape, typical of the family <i>Scaphitidae</i>; the scaphites. The have the early walls regularly involute, but the last whorl detached, and straight for some distance, when it becomes again recurved toward the body." &mdash;Whitney, 1889

Scaphites equalis, Extinct Cephalopod Fossil

Scaphites equalis is a species of extinct cephalopods that thrived during the Cretaceous period. "A…