Silk Moth Stages
"Life history of the silk moth (Bombyx mori). A, caterpillar; B, pupa; C, imago; the cocoon is cut open…
Salmon Development
"The early development of the salmon. 1, The fertilised egg; 2, the egg just before hatching; 3, the…
Frog Stage 2
"Life history of a frog. Newly hatched forms hanging to water-weeds. Stages with external gills." -Thomson,…
Snake Head
"Snake's head. dv., Poison fangs; b., sheath of fang; l., tongue; rl., muscles of tongue." -Thomson,…
Bony Tissue
"Bony Tissue. A, portion of cross-section of a bone, the upper portion of the figure representing the…
Tapeworm
"Diagram showing some stages in the life history of the Tapeworm (taenia). A, Cysticercus or Bladderworm…
Polygordius
"Diagrams of stages in the metamorphosis of Polygordius, a primitive annelid. Ectoderm throughout is…
Rattlesnake Skull
"A, lateral view of skull of rattlesnake (Crotalus). B. O, basi-occipital; B. S, basi-sphenoid; E. O,…
Rattlesnake Poison Apparatus
"Poison apparatus of rattlesnake. A, eye; Gc, poison-duct entering the poison-fang at +; Km, muscles…
Nitrogen Cycles and Litter Disposal
"Schematic of nitrogen cycling associated with litter disposal on broiler farms." -Hatzell, 1995
Lake Littoral Zone
"Section across a lake littoral zone, showing typical plant species." From left to right: tapegrass,…
Bean Seed Stages
"Successive stages in the life history of the bean seedling. AA, the surface of the ground; r, primary…
Escape from the Serpent of Ceylon
Miraculous escape from the royal serpent of Ceylon. Caption bellow illustration: "In dreadful anticipation…
Conflict with a Rattlesnake
Conflict with a rattlesnake. Caption below illustration: "The snake when about a yard distant, made…
Life in Constantinople
In the streets of Constantinople one might find lemonade sands, sweetmeats, coffee, and pipes and at…
Herdsman of the Alps
"The herdsman of the Alps leads a life peculiar to his race and land."-Lupton The Alps are located in…
George Washington Poster
Poster illustrating George Washington's exemplary character in a series of sketches from his life.
The Lower Jaw of a Squirrel
The backward and forward movement of the jaws and the great size and strength of the lower jaw, adapt…
Muscular Fiber Cells of a Snake
From preparation of the nerve termination in the muscular fibers of a snake. A, End plate seen only…
Fates
The three fates of Greek Mythology were three sisters who spun the thread of life named Clotho, Lachesis,…
Flounder
A common fish known for its flat appearance and both eyes being on the upper, darker side of its body.
The Tiger-Snake
"The most vicious as well as the most dangerous snake in Australia is the Tiger-snake."
Ringed Snake
"They are easily tamed, and may be kept in houses, where they soon accustom themselves to those who…
Fer-de-Lance
"The Viperine Snakes have a long, perforated, erectile fang on the maxillary bone, which is extremely…
Northern Rattlesnake
"Although furnished with such deadly weapons, the rattlesnake can scarcely be termed a vicious animal,…
Fangs and Tongue of an Adder
"When the animal wishes to use these teeth, they issue from this fleshy sheath, somewhat in the same…
Auk
"Once common off the coast of Scotland, but a present scarce in arctic seas. It resembles the penguin…
Brazilian Motmot
"The Motmots ... are very wild, and lead an isolated life in the thick forests of South America."
Antenna of a Species of Asida
"Everything indicates that these organs play a very important part in the life of insects."
Antenna of Zygia Oblonga
"Everything indicates that these organs play a very important part in the life of insects."
Flea (Pulex Irritans)
"The common Flea has an oval body, somewhat flattened, and covered with a rather horay skin."
Louse (Pediculus Capitis)
"The Head-louse is an insect with a flat body, slightly transparent, and of a grayish color."
Christ Taking Leave of His Mother
"Christ Taking Leave of His Mother. By Albrecht Dürer. From the wood engraving in 'The Life of…
The Gnat (Culex Pipiens)
Gnats are a member of the Culicidae family. "They present a charming appearance when seen through…
The Gnat (Culex Pipiens)
Gnats are a member of the Culicidae family. "They present a charming appearance when seen through…
Magnified Head of Gnat
"The head of the gnat with its two eyes, its antennae and trunk. Their eyes, covered with network, are…
Magnified Trunk of Gnat
"That which is generally seen is only the case containing the instruments which are intended to pierce…
Lancets of the Gnat
"The gnat's sting is a sort of a sword in miniature. These have their points reversed, and are serrated…
Larva of the Gnat
"Many have observed in stagnant water, a number of worm-like bodies. These are gnats in the larvae period."
Pupa of the Gnat
In the pupa state, there is no digestive system, but it does have respiration organs.
Magnified Eggs of the Gnat
"The number of gnats which come into existence in the course of a year is marvelous."
Daddy Long Legs (Tipula Oleracea)
"Sometimes these insects destroy grass; they often injure the harvest."
Tabanus Autumnalis
"The Tabanus Autumnalis is a common species, eight or nine lines in length, or a blackish color."
Chrysops Caecutiens
"Chrysops Caecutiens torment horses and cattle very much by biting them around the eyes."
Asilus Crabroniformis
"This species is common over the whole of Europe, and lives at the expense of caterpillars and other…
Vermilea de Geeri
"The larva makes a small tunnel in the sand, having a conical mouth, where it waits, like the spider,…
A Species of Volucella
Because they resemble the humblebee, they introduce their eggs into humblebee nests. When the larvae…
Species of Helophilus
"In England they are known as rat-tailed maggots, and their habits are aquatic."