ClipArt ETC
"Nichols Rheostat. a, wooden frame; b, tinned iron strip; c, stationary, and c', movable binding-posts; d, copper strip for short-circuiting." -Whitney, 1911

Rheostat

"Nichols Rheostat. a, wooden frame; b, tinned iron strip; c, stationary, and c', movable binding-posts;…

"Riding-boom. A boat-boom or long spar working in a hinge or goose-neck, designed to be lowered from abreast the fore-rigging to a horizontal position at right angles with the keel of the vessel ... a, life-line; b, lift; c, riding-boom; d, rope ladder; e, outhaul; f, after-boom guy." -Whitney, 1911

Riding Boom

"Riding-boom. A boat-boom or long spar working in a hinge or goose-neck, designed to be lowered…

"In wood-working, a saw in which the cutting-teeth are placed at the ends of radial arms instead of upon he rim of a disk." -Whitney, 1911

Rift Saw

"In wood-working, a saw in which the cutting-teeth are placed at the ends of radial arms instead of…

"Road-machine. a, telescopic axle for rear wheels; b, scraper delivering spoil between rear wheels; c, platform for operator; d, seat for driver; e, e, e, e, hand-wheels controlling all operations of machine." -Whitney, 1911

Road Machine

"Road-machine. a, telescopic axle for rear wheels; b, scraper delivering spoil between rear wheels;…

"Rocaille coquille, book-plate ornamentation in varying forms of the scallop-shell upon rockwork." -Whitney, 1911

Rocaille Coquille

"Rocaille coquille, book-plate ornamentation in varying forms of the scallop-shell upon rockwork." -Whitney,…

"A pin-chain of the link-belt type having a loose roller on each pin that joins the links. ... Roller-chain. a, links; b, pins joining links; c, pin without roller or next links; d, rollers on pin; e, roller in position without pin; f, slot and key holding links." -Whitney, 1911

Roller Chain

"A pin-chain of the link-belt type having a loose roller on each pin that joins the links. ... Roller-chain.…

"Root-weevil (Leptops hopei). a, weevil; b, pupa; c, larva, in situ; d, weevil ovipositing on leaf above; e, eggs on opened leaf." -Whitney, 1911

Apple Root Weevil

"Root-weevil (Leptops hopei). a, weevil; b, pupa; c, larva, in situ; d, weevil ovipositing on leaf above;…

"Wire-rope clamp, an iron clamp, held together by bolts and nuts, used to hold the end of a wire rope to form a loop or ring. It is used to secure ends of derrick guy-ropes and wire standing rigging." -Whitney, 1911

Wire Rope Clamp

"Wire-rope clamp, an iron clamp, held together by bolts and nuts, used to hold the end of a wire rope…

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ = a cos b θ. A, three-leaved rose of equation ρ = a sin 3 θ." -Whitney, 1911

Rose

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ…

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ = a cos b &theta. B, three-leaved rose of equation ρ = a cos 3 &theta." -Whitney, 1911

Rose

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ…

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ = a cos b &theta. C, four-leaved rose of equation ρ = a sin 2 &theta." -Whitney, 1911

Rose

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ…

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ = a cos b &theta. D, four-leaved rose of equation ρ = a cos 2 &theta." -Whitney, 1911

Rose

"In geometry, certain transcendental curves having, in polar coordinates, equations of the form ρ…

"Wood-rose, a remarkable vegetable excrescence, resembling a flower with radiating corrugated petals carved from wood, caused by the union of the saucer-shaped placenta-like base of certain parasitic plants of the mistle-toe family with the foster-branch of the host and its persistence after the death of the plant." -Whitney, 1911

Wood Rose

"Wood-rose, a remarkable vegetable excrescence, resembling a flower with radiating corrugated petals…

"Wood-rose, a remarkable vegetable excrescence, resembling a flower with radiating corrugated petals carved from wood, caused by the union of the saucer-shaped placenta-like base of certain parasitic plants of the mistle-toe family with the foster-branch of the host and its persistence after the death of the plant." -Whitney, 1911

Wood Rose

"Wood-rose, a remarkable vegetable excrescence, resembling a flower with radiating corrugated petals…

"Rose-curculio (Rhynchites bicolor). a, beetle; c, same in profile; b, claw." -Whitney, 1911

Rose Curculio

"Rose-curculio (Rhynchites bicolor). a, beetle; c, same in profile; b, claw." -Whitney, 1911

"In photometry (measure of light), a mounting for an incandescent lamp ... Rotator. The lamp to be tested is mounted upon a revolving spindle, ss, current being supplied through the brushes bb. The axis of rotation may be varied by turning the spindle about the horizontal shaft a." -Whitney, 1911

Rotator

"In photometry (measure of light), a mounting for an incandescent lamp ... Rotator. The lamp to be tested…

The word 'Musica' written in round writing. "A method of handwriting, characterized by strong curves with exaggerated shading, used in lettering..." -Whitney, 1911

Musica

The word 'Musica' written in round writing. "A method of handwriting, characterized by strong curves…

"Round-writing Instrument, with round-writing pens." -Whitney, 1911

Round Writing Instrument

"Round-writing Instrument, with round-writing pens." -Whitney, 1911

"Hawser-rudder. a, hawser; bb, hauling-lines, leading through chocks on each quarter." -Whitney, 1911

Hawser Rudder

"Hawser-rudder. a, hawser; bb, hauling-lines, leading through chocks on each quarter." -Whitney, 1911

"Running-part. Naut., that part of a rope which is hauled upon is called the hauling-part (b), the part between the blocks is the running-part (a), and the part which is made fast is referred to as the standing-part (c)." -Whitney, 1911

Running Part

"Running-part. Naut., that part of a rope which is hauled upon is called the hauling-part (b), the part…

"Rustication was first treated systematically by the architects of the Renaissance in Tuscany, especially in Florence." -Whitney, 1911

Rustication

"Rustication was first treated systematically by the architects of the Renaissance in Tuscany, especially…

"Pasture Sage-brush (Artemisia frigida). a, leaf; b, flower-head; c, fertile flower; d, marginal flower." -Whitney, 1911

Sagebrush

"Pasture Sage-brush (Artemisia frigida). a, leaf; b, flower-head; c, fertile flower; d, marginal flower."…

"Canadian St.-John's-wort (Hypericum Canadense). a, leaf; b, seed-capsule." -Whitney, 1911

Canadian St. John's Wort

"Canadian St.-John's-wort (Hypericum Canadense). a, leaf; b, seed-capsule." -Whitney, 1911

"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;…

"Marsh St.-John's-wort (Triadenum Virginicum). a, flower; b, seed-capsule." -Whitney, 1911

Marsh St. John's Wort

"Marsh St.-John's-wort (Triadenum Virginicum). a, flower; b, seed-capsule." -Whitney, 1911

"Cross-cut-sail, a sail in which the canvas seams run fore-and-aft instead of up and down." -Whitney, 1911

Cross Cut Sail

"Cross-cut-sail, a sail in which the canvas seams run fore-and-aft instead of up and down." -Whitney,…

"Ruedorf's sand-bath, a simple form of sand-bath in which the temperature can be regulated by raising or lowering an S-shaped burner." -Whitney, 1911

Ruedorf's Sand Bath

"Ruedorf's sand-bath, a simple form of sand-bath in which the temperature can be regulated by raising…

"Belt-sander. a, standard, supporting machine; b, work-table; c, fabric coated with sand, in the form of a continuous belt; d, tension-controlling mechanism; e, power connection; f, samples of finished work." -Whitney, 1911

Belt Sander

"Belt-sander. a, standard, supporting machine; b, work-table; c, fabric coated with sand, in the form…

"Disk- and Drum-sander. a a, frame of machine; b, vertical disk coated with sand; c, horizontal revolving drum coated with sand; d, work-table for presenting work to disk; e, power connection." -Whitney, 1911

Disk and Drum Sander

"Disk- and Drum-sander. a a, frame of machine; b, vertical disk coated with sand; c, horizontal revolving…

"Thyme-leaved Sandwort (Arenaria serpyllifolia). a, capsule surrounded by the scarious calyx; b, expanded flower." -Whitney, 1911

Thyme-Leaved Sandwort

"Thyme-leaved Sandwort (Arenaria serpyllifolia). a, capsule surrounded by the scarious calyx; b, expanded…

"Sand-vine (Gonolobus lavis). a, flower; b, crown-lobe tipped by a 2-cleft awn; c, stamen-tube; d, follicle or seed-pod." -Whitney, 1911

Sand Vine

"Sand-vine (Gonolobus lavis). a, flower; b, crown-lobe tipped by a 2-cleft awn; c, stamen-tube; d, follicle…

"Sansa. An African musical instrument which consists of a sounding-board of some hard wood with strips of iron, or occasionally bamboo, fastened to it so as to leave one end free to vibrate." -Whitney, 1911

Sansa

"Sansa. An African musical instrument which consists of a sounding-board of some hard wood with strips…

"Sarinda. A Hindu viol, which has a body made of a single wooden block, elliptical in general contour, flat in front and arched at the back, which is hollowed out to a shell." -Whitney, 1911

Sarinda

"Sarinda. A Hindu viol, which has a body made of a single wooden block, elliptical in general contour,…

Used in sash windows, "a chain of peculiar make used to replace a sash-cord when the sash is very heavy." -Whitney, 1911

Sash Chain

Used in sash windows, "a chain of peculiar make used to replace a sash-cord when the sash is very heavy."…

"Barnacle-scale, a coccine scale-insect, Ceroplastes cirripediformis, which occurs upon citrus-trees in Florida and somewhat resembles a very small barnacle, whence the popular and the specific names." -Whitney, 1911

Barnacle Scale

"Barnacle-scale, a coccine scale-insect, Ceroplastes cirripediformis, which occurs upon citrus-trees…

"Scarab, a conventional beetle, which is a common motive in Egyptian art. The more oval form here seen still bears a closer affinity to some Egyptian scarab-borders of the Eighteenth Dynasty." -Whitney, 1911

Scarab

"Scarab, a conventional beetle, which is a common motive in Egyptian art. The more oval form here seen…

The Split Gill mushroom (Schizophyllum commune): "a, Schizophyllum alneum; b, gills, or lamellae, enlarged; c, cross-section of pileus showing split and revolute lamellae." -Whitney, 1911

Split Gill

The Split Gill mushroom (Schizophyllum commune): "a, Schizophyllum alneum; b, gills, or lamellae, enlarged;…

"Scleroderris fuliginosa. a, immature ascocarps ... S. fuliginosa is said to be parasitic on twigs and branches of willows in Europe and North America." -Whitney, 1911

Willow Canker

"Scleroderris fuliginosa. a, immature ascocarps ... S. fuliginosa is said to be parasitic on twigs and…

"Scleroderris fuliginosa. b, ascus containing spores and accompanied by paraphyses ... S. fuliginosa is said to be parasitic on twigs and branches of willows in Europe and North America." -Whitney, 1911

Willow Canker

"Scleroderris fuliginosa. b, ascus containing spores and accompanied by paraphyses ... S. fuliginosa…

Sometimes known as Brown Rot, Monilinia fructigena is a plant pathogen. "Sclerotinia fructigena. a, the conidial form known as Monilia." -Whitney, 1911

Brown Rot

Sometimes known as Brown Rot, Monilinia fructigena is a plant pathogen. "Sclerotinia fructigena. a,…

"Grolier scroll, the flowing curved lines that surround and interlace the geometrical framework of a design for a book-cover in the style of Grolier." -Whitney, 1911

Grolier Scroll

"Grolier scroll, the flowing curved lines that surround and interlace the geometrical framework of a…

The riddle in this "Riddle-seal of Oxford" is an 'ox' crossing a 'ford.' "A seal which contains a rebus, riddle, or other descriptive device." -Whitney, 1911

Riddle Seal

The riddle in this "Riddle-seal of Oxford" is an 'ox' crossing a 'ford.' "A seal which contains a rebus,…

"Ancient Cretan sealing. An impression in clay used to seal vases and other receptacles, examples of which are frequently found in archaeological excavations." -Whitney, 1911

Vase Sealing

"Ancient Cretan sealing. An impression in clay used to seal vases and other receptacles, examples of…

A couch or "Darby and Joan seat, a settee having two chair-like backs, for two persons." -Whitney, 1911

Settee

A couch or "Darby and Joan seat, a settee having two chair-like backs, for two persons." -Whitney, 1911

"Broom-sedge (Andropogon Virginicus). a, spike; b, spikelet; c, glumes." -Whitney, 1911

Broomsedge

"Broom-sedge (Andropogon Virginicus). a, spike; b, spikelet; c, glumes." -Whitney, 1911

"inverted Vertical Pendulum Seismograph. Marvin System. A stiff vertical tube, pivoted at its bottom end, carries a very heavy mass near its upper end, and is rendered stable or astatic by the elastic reaction of a central steel rod which has its bottom end firmly fixed inside the heavy mass and its top end attached to the framework on the pier. The horizontal motion of the ground and pier relative to the steady mass is magnified 120 times and inscribed on smoked-paper record-sheets by two sets of multiplying levers. One records the north-south, the other the east-west component of motion." -Whitney, 1911

Pendulum Seismograph

"inverted Vertical Pendulum Seismograph. Marvin System. A stiff vertical tube, pivoted at its bottom…

"Shaggy-mane (Coprinus comatus) a, young specimen; b, section through a specimen older than a." -Whitney, 1911

Shaggy Mane

"Shaggy-mane (Coprinus comatus) a, young specimen; b, section through a specimen older than a." -Whitney,…

"A slender length of brass resting in a small brass button and designed to stand vertically on the center of a compass glass. From the shadow cast by it the sun's bearing is determined. It may also be used to take compass bearings of other objects." -Whitney, 1911

Shadow Pin

"A slender length of brass resting in a small brass button and designed to stand vertically on the center…

"Shell-work, Hôtel Cluny, Paris. In decorative design, especially carved or modeled, a motive which imitates or is suggested by the forms of shells." -Whitney, 1911

Shell Work

"Shell-work, Hôtel Cluny, Paris. In decorative design, especially carved or modeled, a motive…

"Head-shields of Scinid Lizards. cs, chin-shields; d, disk on lower eylid; e, ear-opening; f, frontal; fn, frontonasal; fp, frontoparietal; i, interparietal; il, lower labials; l, loreals; lb, upper labials; m, mental; n, nasal; nc, nuchals; p, parietals; pf, prefrontal; pn, postnasal; r, rostral; sc, supraciliaries; sn, supranasal; so, supraocular; t, temporal." -Whitney, 1911

Skink Head

"Head-shields of Scinid Lizards. cs, chin-shields; d, disk on lower eylid; e, ear-opening; f, frontal;…

"Resplendent Shield-bearer (Coptodisca splendoriferella). a, leaf of apple showing work; b, summer larva; c, larva in case, traveling; d, cases tied up for winter; e, hibernating larva; f, pupa; g, moth; h, parasite: all enlarged." -Whitney, 1911

Resplendent Shield Bearer

"Resplendent Shield-bearer (Coptodisca splendoriferella). a, leaf of apple showing work; b, summer larva;…

"In railroad construction and canal- or road-work, a large scooping bucket armed with teeth and used with a steam-shovel or operated by power by means of chains that drag the bucket over or through loose material, causing it to scoop up a load." -Whitney, 1911

Shovel Bucket

"In railroad construction and canal- or road-work, a large scooping bucket armed with teeth and used…

"Sicana odorifera. a, fruit; b, female flower; c, male flower." -Whitney, 1911

Cassabanana

"Sicana odorifera. a, fruit; b, female flower; c, male flower." -Whitney, 1911

"Side-oats (Atheropogon curtipendulus). a, spike; b, spikelet; c, spikelet with glumes removed." -Whitney, 1911

Side Oats

"Side-oats (Atheropogon curtipendulus). a, spike; b, spikelet; c, spikelet with glumes removed." -Whitney,…

"Canada Storm Signals. These signals, if displayed by day on lakes Superior, Erie, or Ontario, indicate: No. 1, a moderate gale is expected at first from an easterly direction; No. 2, a moderate gale, at first from an easterly direction; No. 4, a heavy gale, at first from a westerly direction. If displayed on Lake Huron or in Georgian Bay: No. 1, a moderate gale is expected at first from a southerly direction; No. 2, a moderate gale, at first from a northerly direction; No. 3, a heavy gale, at first from a southerly direction; No. 4, a heavy gale, at first from a northerly direction." -Whitney, 1911

Canadian Storm Signals

"Canada Storm Signals. These signals, if displayed by day on lakes Superior, Erie, or Ontario, indicate:…

Used as a form of humiliating punishment for angry women, a ducking stool was "a stool or chair in which common scolds were formerly tied and plunged into water." -Whitney, 1911

Ducking Stool

Used as a form of humiliating punishment for angry women, a ducking stool was "a stool or chair in which…

"Human Thoracic Duct and Azygous Veins. a, receptacle of the chyle; b, trunk of the thoracic duct, opening at c into root of left innominate vein at junction of f, left jugular, and g, left subclavian vein; e, right innominate vein; d, d, d, several thoracic and lumbar lymphatic glands; h, h, a short portion of the esophagus. Two azygous veins run parallel with and on each side of the duct, until the left crosses behind the duct to join the right. The structures represented rest nearly upon the back-bone." -Whitney, 1911

Thoracic Duct

"Human Thoracic Duct and Azygous Veins. a, receptacle of the chyle; b, trunk of the thoracic duct, opening…

The obverse side of the dupondius, "a Roman bronze coin, of the value of 2 asses." -Whitney, 1911

Dupondius, Obverse

The obverse side of the dupondius, "a Roman bronze coin, of the value of 2 asses." -Whitney, 1911

The reverse side of the dupondius, "a Roman bronze coin, of the value of 2 asses." -Whitney, 1911

Dupondius, Revers

The reverse side of the dupondius, "a Roman bronze coin, of the value of 2 asses." -Whitney, 1911

"Düreresque Detail, as illustrated in a woodcut by Dürer." -Whitney, 1911

Dürer Woodcut

"Düreresque Detail, as illustrated in a woodcut by Dürer." -Whitney, 1911