A diagram of wing airplane illustrating the skeleton. The shape of the wing creates a lift—draft…
A plan for pusher aeroplane, or airplanes. The propeller of the pusher plane is located behind the cockpit…
A propeller airplane plan illustrating the proper location of the skeleton and placement of the wires…
A top view plan of a propeller aeroplane, or airplane. The plan shows the proper ribs and skeleton for…
A full fossil skeleton of the Megatherium, an elephant sized ground sloth. The animal was extinct during…
The lower jaw and teeth of the Megatherium, elephant sized sloth. The teeth are quandrangular, or triangular…
Illustration showing the upper molar teeth of the megatherium, a giant sloth. The teeth were 7 to 8…
"The skeleton, more especially in the higher forms, is in the main similar to that of man, so that only…
A side view of the howler monkey skull. The monkey have four sharp canines, long teeth on skull, on…
An illustration of an adult male orangutan viewed from the side. The orbit part of the skull is more…
"In the other forms the number (vertebrae) varies between twenty and thirty three, the latter being…
"The greatest absolute length of the fore—limb occurs in the gorilla and the orangutan. The humerus…
"The skeleton lay on the left side with knees drawn up and hands raised to the head. About it were various…
"The bones in the extremities of this the fleetest of quadrupeds are inclined very obliquely towards…
"Shows the powerful legs, small feet, and rudimentary wings of the bird; the obliquity at which the…
Illustrated is a skeleton of an opuntia stem. These skeleton stems are sometimes made into walking-sticks.
The Skeleton asked his friends, "Do you think this is a gathering, a shindig, or a hootenanny?" The…
A type of Ganoid fish. Ganoid is an order of fishes included seven living genera, whose members are…
A type of Ganoid fish. Ganoid is an order of fishes included seven living genera, whose members are…
This illustration shows a human leg (front view), and comparative diagrams showing modifications of…
Lanyon Quoit is a dolmen near Penzance. A dolmen, also known as a cromlech, portal tomb, portal grave…
"A joint involving the principle of the shackle. Specifically, in anatomy, a kind of articulation found…
"A, acromion; C, coracoid; CA, carpus; CL, clavicle; H, humerus; M, metacarpals; O, ventral surface…
An illustration of a pichiciago, a small burrowing armadillo. The front half of the animal is covered…
"A genus compound radiolarians, typical of the family Sphaerozoidae, the protoplasm of which contains…