"The Abdominal Viscera in situ, as seen when the abdomin is laid open and the great omentum…
"The principal muscles are seen on the left, and superficial veins on the right." — Blaisedell, 1904
"Tendons are white, glistening cords, or straps, which connect the muscles with the bones." —…
"The head is represented as having been thrown back, and the tongue drawn forward. A, B…
An illustration of the "ailmentary canal of Bluebird, reduced; after Audobon. a,b, gullet or oesophagus;…
"To illustrate roughly the passage of air through the glottis, force air through such a tube by blowing…
"Diagram showing the capillary network of the air sacs and origin of the pulmonary veins.. A,…
"A, epithelial lining wall; B, partition between two adjacent sacs, in which run capillaries;…
Left wing of the albatross.
"A, a portion of the colon laid open to show the valve between the large and small intestine;…
Shows the muscles and tendons of the arm.
"Muscles on the front of the arm. Note the while cords, the tendons at the wrist." —Davison, 1910
"The Right Axillary and Branchial Arteries, with Some of their Main Branches." — Blaisedell, 1904
"Showing how firm pressure may be made with the fingers to compress the branchial artery of the left…
"The dotted line shows the course of the right femoral artery." — Blaisedell, 1904
"The Femoral Artery of Right Leg." — Blaisedell, 1904
"Artery in the Front of the Right Leg." — Blaisedell, 1904
"View from above of the Atlas, the first cervical vertebra."—Finley, 1917
"Side view of the axis, the second cervical vertebra."—Finley, 1917
"Some of the Larger Muscles on the Back of the Shoulder and the Arm." — Blaisedell, 1904
"The spinal column below the twelfth dorsal vertebra at A has been removed, as well as the…
The bat genus Nyctalus (Noctule bats) are Evening bats. They are distributed in the temperate and subtropical…
Beak of Buzzard.
Beak of Hawfinch.
Beak of Hummingbird.
Beak of Tawny Owl.
Beak of Shrike.
Beak of Swift.
This illustration shows the plantigrade leg of a bear. Plantigrade means that the animal walks flat…
The antenna of the honey-bee.
The mandible of the honey-bee.
The head of the honey-bee.
The prothorax of the honey-bee.
The tongue of the honey-bee.
The mesothorax of the honey-bee.
The metathorax of the honey-bee.
The abdomen of the honey-bee.
The larva of the honey-bee.
The pupa of the honey-bee.
The pupa of the honey-bee.
"The structure of the mouth in insects exhibits very remarkable modifications, and these are of the…
A species of beetle found in tropical Africa.
"Under surface of large beetle, with deeply concave and comparatively small wings, shows that the nervures…
The prothorax of the May beetle.
The mesothorax of the May beetle.
The metathorax of the May beetle.
The abdomen of the May beetle.
The metathorax of the May beetle from the front.
The May beetle larva in a burrow.
A pupa of the May beetle.
A pupa of the May beetle in cocoon.
An illustration of the dorsal view of a stag beetle.
External features of a bird.
This illustration shows the leg of a bird. P. Pelvis, FE. Femur, TI. Tibia, FI. Fibula, TA. Tarsus,…
"Shows how the bones of the arm (a), forearm (b), and hand (c), are twisted, and form a conical screw."—Pettigrew,…
"Showing how the circulation of blood in the web of a frog's foot looks as seen under the microscope."…
"A single muscle rarely or never contracts alone, but always in harmony with a number of other muscles.…
The bowfin, a primitive freshwater fish, also known as the freshwater dogfish is a voracious fish.