ClipArt ETC
"Alnus glutinosa. A, a flowering twig; s, staminate catkins; p, pistillate catkins; B, a group of staminate flowers, enlarged; C, two pistillate flowers, enlarged." -Bergen, 1896

Alder Flowers

"Alnus glutinosa. A, a flowering twig; s, staminate catkins; p, pistillate catkins; B, a group of staminate…

"Euphorbia corollata. A, flower-cluster with involucre, the whole appearing like a single flower; B, a single staminate flower; C, immature fertile flower, as seen after the removal of the sterile flowers; i, involucre; s, stigmas." -Bergen, 1896

Flowering Spurge

"Euphorbia corollata. A, flower-cluster with involucre, the whole appearing like a single flower; B,…

"Viola tricolor. A, stamens and pistil; B, pistil with stamens removed; C, pod split open." -Bergen, 1896

Heartsease

"Viola tricolor. A, stamens and pistil; B, pistil with stamens removed; C, pod split open." -Bergen,…

"Begonia Flowers. A, staminate flower; B, pistillate flower; C, twisted stigmas, enlarged; D, cross-section of ovary; o, ovary; s, sepals; p, petals." -Bergen, 1896

Begonia

"Begonia Flowers. A, staminate flower; B, pistillate flower; C, twisted stigmas, enlarged; D, cross-section…

"Flower and fruit of Umbelliferae. A, flower of Foeniculum; B, fruit of Heracleum; C, fruit of Heracleum, cross-section; o (in A), ovary; d, disk; sg, stigma; s, stamens; o (in B, and C), oil-tubes; r, ribs. A, B, and C all enlarged." -Bergen, 1896

Umbelliferae

"Flower and fruit of Umbelliferae. A, flower of Foeniculum; B, fruit of Heracleum; C, fruit of Heracleum,…

"Flower of Asclepias Cornuti. A, entire flower; B, vertical section; C, diagram; D, details of pollen-masses and glands. ca, calyx; c, corolla; hd, hood; hn, horn; a, anther; s, stigma; o, ovary; g, gland; p, pollen-mass." -Bergen, 1896

Milkweed

"Flower of Asclepias Cornuti. A, entire flower; B, vertical section; C, diagram; D, details of pollen-masses…

"Flowers of plantain (Plantago), enlarged. A, earlier stage, pistil mature, stamens not yet appearing outside the corolla. B, later stage, pistil withered, stamens mature." -Bergen, 1896

Plantain Flowers

"Flowers of plantain (Plantago), enlarged. A, earlier stage, pistil mature, stamens not yet appearing…

"Bachelor's Button. I, vertical section of the receptacle; II, style and forked stigma; III, corolla, united anthers and stigma; IV, pistil; pap, pappus; ak, akene; V, tubular flower cut vertically, showing anther-tube, traversed by the style; l, lobe of corolla." -Bergen, 1896

Cornflower

"Bachelor's Button. I, vertical section of the receptacle; II, style and forked stigma; III, corolla,…

"Bachelor's Button. I, a tubular flower; anth, the united anthers; II, fruit; III, fruit, vertical section; IV, a neutral ray-flower; V, ring of anthers." -Bergen, 1896

Cornflower

"Bachelor's Button. I, a tubular flower; anth, the united anthers; II, fruit; III, fruit, vertical section;…

"Flower-cluster of yarrow (Achillea Millefolium). A, head seen from above; B, longitudinal section; re, receptacle; ch, chaff; i, involucre; r, ray-flowers; d, disk-flowers; c, corolla; s, stigma." -Bergen, 1896

Yarrow

"Flower-cluster of yarrow (Achillea Millefolium). A, head seen from above; B, longitudinal section;…

A circle with labels for radius, diameter, and circumference. The visual will help to remember what each term means.

Circle Parts

A circle with labels for radius, diameter, and circumference. The visual will help to remember what…

"Explanation of the cylinder. a, altitude; c, circumference of base, or perimeter; d, diameter; s, lateral surface." -Foster, 1921

Cylinder Parts

"Explanation of the cylinder. a, altitude; c, circumference of base, or perimeter; d, diameter; s, lateral…

The carnivorous plant, the butterwort, of the genus Pinguicula.

Butterwort

The carnivorous plant, the butterwort, of the genus Pinguicula.

The fruit, flower, and leaves of the cacao tree.

Cacao

The fruit, flower, and leaves of the cacao tree.

The melon cactus or Melocactus.

Melon Cactus

The melon cactus or Melocactus.

Camellia, a flowering plant of the Theaceae family.

Camellia

Camellia, a flowering plant of the Theaceae family.

The capsicum plant, showing flower and fruit (pepper).

Capsicum

The capsicum plant, showing flower and fruit (pepper).

"Cardamom. a, cross section of fruit; b, fruit; c, flower; d, seeds." -Foster, 1921

Cardamom

"Cardamom. a, cross section of fruit; b, fruit; c, flower; d, seeds." -Foster, 1921

"Details of a castle: 1. Fortified approach 2. Drawbridge 3. Moat 4. Donjon or keep 5. Towers flanking main entrance 6. Angle towers for defense of outer wall 7. Chapel." -Foster, 1921

Castle Parts

"Details of a castle: 1. Fortified approach 2. Drawbridge 3. Moat 4. Donjon or keep 5. Towers flanking…

The caster oil plant, Ricinus communis.

Castor Oil Plant

The caster oil plant, Ricinus communis.

Leaves and flowers of the cinnamon plant.

Cinnamon

Leaves and flowers of the cinnamon plant.

"The sugar maple tree resembles the sycamore, and abounds in the northern parts of the United States, and in the British possessions, where large quantities of sugar are made. "-Lupton

Gathering Sap to make Maple Sugar

"The sugar maple tree resembles the sycamore, and abounds in the northern parts of the United States,…

"Cotton is a downy substance produced on the seeds of he cotton plant, Gossypium, which is herbaceous, and of a height varying from four to twenty feet." -Lupton

Cotton Plant

"Cotton is a downy substance produced on the seeds of he cotton plant, Gossypium, which is herbaceous,…

"The most common variety of the flax plant has a very slender erect stem, two or three feet high, branching only near the top, so as to form a loose corymb of flowers." -Lupton

Flax Plant

"The most common variety of the flax plant has a very slender erect stem, two or three feet high, branching…

"Hemp adapts itself to diversities of climate, and is cultivated equally under the burning sun of the tropics, and in the northern parts of Russia." -Lupton

Hemp Plant

"Hemp adapts itself to diversities of climate, and is cultivated equally under the burning sun of the…

"The plant tillers like wheat, but not to the same degree. The cane ground is kept clean by hand-hoeing, or by the plough." -Lupton

Gathering, Sugar Cane

"The plant tillers like wheat, but not to the same degree. The cane ground is kept clean by hand-hoeing,…

"The castor oil plant belongs to an order whose affinities have not yet been accurately limited by botanists; but it is supposed to comprise at least one thousand five hundred species." -Lupton

The Castor Oil Plant

"The castor oil plant belongs to an order whose affinities have not yet been accurately limited by botanists;…

"The mint family of plants, of which the most important species are peppermint, spearmint and penny-royal, all contain an aromatic essential oil, possessing medicinal qualities." -Lupton

Peppermint

"The mint family of plants, of which the most important species are peppermint, spearmint and penny-royal,…

The nutmeg trees are genus of the evergreen tree. The flowers grown on the nutmeg tree can be used as two spices, nutmeg and mace.

Nutmeg Tree

The nutmeg trees are genus of the evergreen tree. The flowers grown on the nutmeg tree can be used as…

The cinnamon tree is a evergreen tree small in stature. The bark from the tree is used as a the spice, cinnamon.

Cinnamon Tree

The cinnamon tree is a evergreen tree small in stature. The bark from the tree is used as a the spice,…

"Pimento or Jamaica pepper, otherwise called allspice, is a small berry, the fruit of a beautiful tree, abut thirty feet high, with a straight trunk much branched above covered with a smooth, gray bark." -Lupton

Allspice

"Pimento or Jamaica pepper, otherwise called allspice, is a small berry, the fruit of a beautiful tree,…

" Our engraving represents a wonderfully singular and beautiful plant, which grows among the mountains of California. " -Lupton

Twining Hyacinth of California

" Our engraving represents a wonderfully singular and beautiful plant, which grows among the mountains…

"This tree, a native of India, is remarkable for its vast branches. It is a species of fig; has ovate, heart-shaped, entire leaves, about five or six inches long, and produces a fruit of a rich scarlet, not larger than a cherry, growing in pairs from the axils of the leaves." -Lupton

Banyan Tree

"This tree, a native of India, is remarkable for its vast branches. It is a species of fig; has ovate,…

"Called the Indian fig. The opuntia is a fleshly and succulent plant, destitute of leaves, covered with clusters of spines, and consisting of flattened joints inserted upon each other." -Marshall

Prickly Pear Cactus

"Called the Indian fig. The opuntia is a fleshly and succulent plant, destitute of leaves, covered with…

An illustration showing the construction used to divide a line AB into two equal parts; and to erect a perpendicular through the middle. "With the end A and B as centers, draw the dotted circle arcs with a radius greater than half the line. Through the crossings of the arcs draw the perpendicular CD, which divides the line into two equal parts."

Construction Of A Line Divided In Equal Parts

An illustration showing the construction used to divide a line AB into two equal parts; and to erect…

An illustration showing the construction used to divide an angle into two equal parts. "With C as a center, draw the dotted arc DE; with D and E as centers, draw the cross arcs at F with equal radii. Join CF, which divides the angle into the required parts."

Construction Of A Divided Angle

An illustration showing the construction used to divide an angle into two equal parts. "With C as a…

An illustration showing the construction used to divide an angle into two equal parts when the lines do not extend to a meeting point. "Draw the lined CD and CE parallel, and at equal distances from the lines AB and FG. With C as a center, draw the dotted arc BG; and with B and G as centers, draw the cross arcs H. Join CD, which divides the angle into the required equal parts."

Construction Of A Divided Angle

An illustration showing the construction used to divide an angle into two equal parts when the lines…

An illustration showing the construction used to divide the line AB in the same proportion of parts as AC. "Join C and B, and through the given divisions 1, 2, and 3 draw lines parallel with CB, which solves the problem."

Divide A Line Proportionately

An illustration showing the construction used to divide the line AB in the same proportion of parts…

An illustration showing how to construct a square upon a given line. "With AB as radius and A and B as centers, draw the circle arcs AED and BEC. Divide the arc BE in two equal parts at F, and with EF as radius and E as center, draw the circle CFD. Join A and CB and D, C and D, which completes the required square."

Square Constructed Upon A Given Line

An illustration showing how to construct a square upon a given line. "With AB as radius and A and B…

"a genus of algae. P.nivalis (red-snow) appears on the surface of snow, tinging extensive tracts in the Arctic regions or amongst the Alps, in an incredibly short space of time, with a deep crimson. This plant may be regarded a s one of the simplest forms of vegetation." -Marshall

Protococcus Algae

"a genus of algae. P.nivalis (red-snow) appears on the surface of snow, tinging extensive tracts in…

"In a system of pulleys (figs. 3,4) in which the same string passes round any number of pulleys, and the parts of it between the pulleys are parallel, there is an equilibrium when the power is to the weight as 1 to the number of strings at the lower block" -Marshall

Pulley

"In a system of pulleys (figs. 3,4) in which the same string passes round any number of pulleys, and…

An illustration showing how to construct a cyma, or two circle arcs that will tangent themselves, and two parallel lines at given points A and B. "Join A and B; divide AB into four equal parts and erect perpendiculars. Draw Am at right angles from A, and Bn at right angles from B; then m and n are the centers of the circle arcs of the required cyma."

Construction Of A Cyma

An illustration showing how to construct a cyma, or two circle arcs that will tangent themselves, and…

An illustration showing how to construct a talon, or two circle arcs that will tangent themselves, and meet two parallel lines at right angles in the given points A and B. "Join A and B; divide AB into four equal parts erect perpendiculars; then m and n are the centers of the circle arcs of the required talon."

Construction Of A Talon

An illustration showing how to construct a talon, or two circle arcs that will tangent themselves, and…

An illustration showing how to construct a circle arc without recourse to its center, but its chord AB and height h being given. "With the chord as radius, and A and B as centers, draw the dotted circle arcs AC and BD. Through the point O draw the lines AOo and BOo. Make the arcs Co=Ao and Do=Bo. Divide these arcs into any desired number of equal parts, and number them as shown on the illustration. Join A and B with the divisions, and the crossings of equal numbers are points in the circle arc."

Construction Of A Circle Arc

An illustration showing how to construct a circle arc without recourse to its center, but its chord…

"A climbing plant and its fruit, of the genus Cucurbita. The pumpkin is originally from India, but is at present cultivated in most parts of Europe and in America." -Marshall

Pumpkin

"A climbing plant and its fruit, of the genus Cucurbita. The pumpkin is originally from India, but is…

An illustration showing how to construct an octagon on a given line. "Prolong AB to C. With B as center and AB as radius, draw the circle AFDEC; from B, draw BI at right angles to AB; divide the angles ABC and DBC each into two equal parts; then BD is one side of the octagon. With A and E as centers, draw the arcs HKE and AKI, which determine the points H and I, and thus complete the octagon as shown in the illustration."

Construction Of An Octagon

An illustration showing how to construct an octagon on a given line. "Prolong AB to C. With B as center…

An illustration showing how to construct a regular polygon on a given line without resort to its center. "Extend AB to C and, with B as center, draw the half circle ADB. Divide the half circle into as many parts as the number of sides in the polygon, and complete the construction as shown on the illustration."

Construction Of A Regular Polygon On A Line

An illustration showing how to construct a regular polygon on a given line without resort to its center.…

The quince-tree, which is supposed to be a native of Western Asia, is now cultivated throughout Europe, and in many parts of the United States, for its handsome golden yellow fruit, which, though hard and austere when plucked from the tree, becomes excellent when boiled and eaten with sugar, or preserved in syrup, or made into marmalade.

Quince Fruit

The quince-tree, which is supposed to be a native of Western Asia, is now cultivated throughout Europe,…

An illustration showing how to construct an isometric ellipse by compass and six circle arcs. "Divide OA and OB each into three equal parts; draw the quadrant AC. From C, draw the line Cc through the point 1. Through the points 2 draw de at an angle of 45° with the major axis. Then 2 is the center for the ends of the ellipse; e is the center for the arc dc; and C is the center for the arc cf."

Construction Of An Isometric Ellipse

An illustration showing how to construct an isometric ellipse by compass and six circle arcs. "Divide…

An illustration showing how to construct a hyperbola by plotting. "Having given the transverse axis BC, vertexes Aa, and foci ff'. Set off any desired number of parts on the axis below the focus, and number them 1,2,3,4,,5,etc. Take the distance a1 as radius, and, with f' as center, strike the cross 1 with f'1=a1. With the distance A1, and the focus f as center, strike the cross 1 with the radius F1=A1, and the cross 1 is a point in the hyperbola."

Construction Of A Hyperbola

An illustration showing how to construct a hyperbola by plotting. "Having given the transverse axis…

This gigantic flower, one of the marvels of the vegetable world, was discovered in the interior Sumatra by Sir. T Raffles and Dr. Arnold. The whole plant seems to consist of little else beyond the flower and root.

Raffle'sia Flower

This gigantic flower, one of the marvels of the vegetable world, was discovered in the interior Sumatra…

"A regular township, according to United States surveys, is 6 miles square and is divided into 36 equal parts or sections, each section containing 640 acres and measuring one mile square...How many acres or land in 4.75 sections? How many more acres in 7.5 sections than there are in 3 sections? How many acres of land in .5 section?, 2.5 sections?, 5 sections? How many more acres in 3.5 sections than in 2 sections?" -Foster, 1921

Land Measurement

"A regular township, according to United States surveys, is 6 miles square and is divided into 36 equal…

A bird belonging to the family Sylviadae, nearly allied to the nearest, but having a more slender form and a more slender bill. It is found in almost all parts of Britain as a summer bird of passage, and has a soft sweet song.

Redstart Bird

A bird belonging to the family Sylviadae, nearly allied to the nearest, but having a more slender form…

A species of deer found in the northern parts of Europe and Asia. It has branched, recurved, round antlers, the summits of which are palmated; the antlers of the male are much larger than those of the females.

Reindeer

A species of deer found in the northern parts of Europe and Asia. It has branched, recurved, round antlers,…

Convallaria majalis or lily of the valley.

Lily of the Valley

Convallaria majalis or lily of the valley.

The American lotus or Nelumbo lutea.

American Lotus

The American lotus or Nelumbo lutea.

"The Lungs. 1, Summit of lungs. 2, Base of lungs. 3, Trachea. 4, Right bronchus. 5, Left bronchus. 6, Left aurical of heart. 7, Left superior pulmonary vein. 8, Right superior pulmonary vein. 9, Left ventricle of heart. 10, Right ventricle of heart." -Foster, 1921

Lungs

"The Lungs. 1, Summit of lungs. 2, Base of lungs. 3, Trachea. 4, Right bronchus. 5, Left bronchus. 6,…

The magnolia flower.

Magnolia

The magnolia flower.

The maidenhair fern or Adiantum.

Maidenhair Fern

The maidenhair fern or Adiantum.

The leaves, flowers, and fruit of the mango tree.

Mango

The leaves, flowers, and fruit of the mango tree.