Kidney
Transverse section of the human kidney: "(a) cortex; (b) medulla; (c) small branch of the renal artery;…
Kite
The parts of a box kite: "A, frame, with B, crosspiece; C D, details of joints; F G, bridle; E, string…
Tobacco
"A plant of the nightshade family, extensively cultivated for its leaves, which are used for smoking…
Torpedo
A device propelled through water with a ship as its target. "(a) Head; (b) air cylinder; (c) after body;…
Type
A piece of wood or metal to stamp a letter or character. "(1) the body, (2) the face, (3) the shoulder,…
Nutmeg
A nutmeg plant and its parts. "a, fruit bursting open; b, the same with one valve removed; c, section…
Opium poppy
The parts of the opium poppy from which the drug is made from the poppy's juice. "a, whole plant; b,…
Papaw
"A native tree of the United States, growing principally in Michigan, New York, New Jersey and Kansas."…
Papyrus
"A water plant which furnished the material upon which the ancient Egyptians did their writing."
Peanut Plant
A vine of the pea family, the peanut plant is native to Brazil but the fruit of the plant has become…
Fortified Gate
"Fortified gate of a medieval castle...(A) the moat; (B) the drawbridge; (C) the portcullis." -Breasted,…
Coucy le Chateau
French castle of Coucy-le-Chateau built in the thirteenth century. The parts are: (A) moat, (B) round…
Mount Vesuvius
The parts of a volcano illustrated with Mount Vesuvius: "a, the cone; b, summit cinder-cone; c, Somma,…
Snapdragon
"The snapdragon catch-fly, showing tiny insects caught upon the sticky band of the stems." -University…
Cow Grazing on a Thorn-Tree
The image shows a cow grazing on a thorn-tree. A cow and many other animals graze with their tongue…
Parts of an Insect
"A, the head; B, C, D, segments of the thorax; E, abdomen; F, ovipositor." -Cooper, 1887
Clamshell
"a, a', impressions of the muscles; p, pallial line; s, bend occupied by the siphon; h, hinge; c, t,…
Egg Parts
"Section of a Hen's Egg before Incubation. a, yolk, showing concentric layers; a', its semi-fluid center;…
Bartlett Pear Flower
"Enlarged section of a Bartlett pear flower: st, style; sp, sepal; f, filament; a, anther; s, stigma;…
German Millet
"German Millet: a and b, two views of the spikelet with its cluster of three "beards;" c, 'seed.'" -Department…
Ankee Millet
"'Ankee' Millet: a and b, two views of the spikelet; c and d, two views of the 'seed.'" -Department…
Shama Millet
"Shama Millet: a, b, c, d, different views of the spikelet and glumes, or chaff; e, f, two views of…
Broom-Corn Millet
"Broom-corn Millet: a, b, and c, views of the spikelet and glumes, or chaff; d and e, two views of the…
Lavender
"Wild plant of the true lavender (Lavandula angustifolia): a, b, calyxes of flowers, the chief source…
Opoponax
"Cassie or opoponax (Acacia farnesiana): a, head of opened flowers; b, head of unopened flowers." -Department…
Onion Cells
"A, embryonic cells from onion root tip; d, plasmatic membrane; c, cytoplasm; a, nuclear membrane enclosing…
Onion Cells
"B, older (onion) cells farther back from the root tip. The cytoplasm is becoming vacuolate; f, vacuole."…
T. Zebrina Cell
In onion cells: "C, a cell from the epidermis of the mid-rib of Tradescantia zebrina, in its natural…
T. Majus Cell
"A, cell from the epidermis of the upper side of the calyx of Tropaeolum majus with crystalline chromoplasts."…
Plant Cell Division 1
First stage in plant cell division: Protophase 1; "Resting cell ready to begin division." -Stevens,…
Plant Cell Division 2
Second stage in plant cell division: Protophase 2; "the nuclear reticulum is assuming the form of a…
Plant Cell Division 3
Third stage in plant cell division: Protophase 3; "The nuclear thread has divided longitudinally throughout…
Plant Cell Division 4
Fourth stage in plant cell division: Protophase 4; "The nuclear membrane and the nucleolus have disappeared,…
Plant Cell Division 5
Fifth stage in plant cell division: Metaphase; "The metaphase, where the longitudinal halves of the…