A fish comsisting of an ossified skeleton and the ventral fins united in a broad suctorial disk.
Horses have long played an important role in transportation, whether ridden or used for pulling vehicles.
This illustration represents a skeleton of another species of ancient amphibian reptiles.
This is a skeleton of the Megatherium. Megatheria were a group of elephant-sized ground sloths that…
A remarkable genus of fossil lizards, peculiar to the Mesozoic strata. Its anomalous structure was long…
This illustration shows the skeletons of Anthropid Apes compared with that of Man.
A very beautiful animal, resembling te quagga in some respects, but having the coloring of a zebra.
The son of Acoetes and allegedly a priest of Poseidon at Troy. He is famous for warning the Trojans…
A horse, with names of parts. 1, crest; 2, withers; 3, croup; 4, hamstring; 5, hock; 6, cannon; 7, fetlock;…
"Actinomma Asteracanthion, a Radiolarian with a limited number of specialized radii (axes), symmetrically…
The son of Acoetes and allegedly a priest of Poseidon at Troy. He is famous for warning the Trojans…
"The vertebre of serpents are so formed as to admit a great pliancy of the body, which is capable of…
"The prey of a serpent is oven thicker than the serpent itself, and to admit of its being swallowed,…
"The Roman soldiers seem to have used two sorts of tents, one, a tent proper, of canvas or some analogous…
"A reduced copy of the 'Knight,' and is interesting as one of the first wood-engravings executed in…
A spur is a metal tool designed to be worn in pairs on the heels of riding boots for the purpose of…
"Tergal skeleton of Asterius rubens. a, connecting pieces; b, spinebearing plates." — Encyclopedia…
"A current is caused to pass from the mercury through C along the radius of the disc A through the field…
"A Skeleton of a young colony of Tubipora purpurea. st, stolon; p, platform. B, Diagrammatic…
"Side view of second upper molar tooth of Anchitherium (brachyodont form)." — Encyclopedia Britannica,…
"Successive stages of modification of the feet of extinct forms of horse-like animals, showin gradual…
"Successive stages of modification of the feet of extinct forms of horse-like animals, showin gradual…
"Successive stages of modification of the feet of extinct forms of horse-like animals, showin gradual…
"Successive stages of modification of the feet of extinct forms of horse-like animals, showin gradual…
"Successive stages of modification of the feet of extinct forms of horse-like animals, showin gradual…
"Side view of skull of horse, with the bone removed so as to expose the whole of the teeth. PMx, premaxilla;…
"The spinal column consists of abdominal and caudal vertebre, the coalescence of the parapophyses into…
"The humerus, which moves freely by a globular head upon the scapula, forming the shoulder-joint." —…