A diagram depicting an unpruned vine trained according to the umbrella system. This image shows stem…
An image depicting a pruned vine that was trained according to the umbrella system. This system is also…
"The two chief avenues that were open to advancement were the political and the military. He must be…
"A contemporary cartoon which represents Catherine II, Joseph II, and Frederick II pointing out on the…
Lord Clive was a British officer who established the military and political supremacy of the East India…
"A contemporary cartoon representing the French people hammering to pieces with their flails all the…
"A cartoon which appeared in the English journal Punch for November 17, 1860."—Webster, 1920
William I, in the garb of an ancient Germanic chieftain, rides his charger over the body of prostate…
"A cartoon by Sir John Tenniel which appeared in the English journal Punch for June 10, 1854. The tsar…
"A cartoon by Sir John Tenniel which appeared in the English journal Punch for August 22, 1857."—Webster,…
A Venezuelan military and political leader. He helped lead Bolivia, Colombia, Ecuador, Panama, Peru,…
An Italian inventor who is best known for his development of a radio telegraph system.
"A cartoon by Sir John Tenniel which appeared in the English journal Punch for March 9, 1890."—Webster,…
"Richard I (looking down on the Holy City): 'My dream comes true.' A cartoon which appeared in Punch,…
"Student life in the earlier university period, before the dormitory and college system was introduced,…
A French pastor during the Protestant Reformation, who helped develop the system of Christian theology…
Also known as Gnaeus Pompeius Magnus. He was a military and political leader of the Roman Republic.
Also known as Gnaeus Pompeius Magnus. He was a military and political leader of the late Roman Republic.
"The bones in the extremities of this the fleetest of quadrupeds are inclined very obliquely towards…
These pulleys are grooved such as to guide the inner belt, in this system there is less of a chance…
This is the garden plan of the Tuileries Garden in the time of Louis XIII in France. This was the garden…
In a horizontal system of training pear trees the lower branches must be equally vigorous with the upper…
A diagram of the inner workings of a trolly station. This diagram shows how trollies used to start when…
A circuit breaker like the ones found on a railway switchboard. Circuit breakers are used to switch…
How electrolysis may occur in a trolley system. TT is the trolley wire, RR is the track. As shown by…
An air-brake system that was in use in the early twentieth century on trolleys. This model was recommended…
The general arrangement of a Westinghouse electric brake commonly used in trolleys at the turn of the…
The digestive system of a fowl. 1 is the tongue, 3 is the crop, 6 is the gizzard, 10 is the small intestine,…
Human lungs. 1 and 2 make up the larynx, or voice box. 1 is thyroid cartilage, 2 is cricoid cartilage.…
An inclined plane with an inverted pulley system. No rule can be given for the ratio of power to weight.…
Isothermal expansion is a change in a system with a constant temperature. This occurs when: A. Said…
This is a crystal of Copper Silicate (Dioptase) with a rhombohedron of the third order, (s), in combination…
This image represents an isometric holohedral mirror positioned to produce a cube by reflection.
In the tetragonal system, the unit pyramid of the second order is the most common twinning plane. This…
In the orthorhombic system, tabular crystals of lead carbonite (cerussite), bounded by the forms ∞P∞̆,…
This figure represents a crystal of iron pyrite showing representatives of all the forms of the isometric…
Nerve Ganglia, or Knots (sing. Ganglion; Knot) occur as collections of nerve cells on the course of…
This illustration shows the glove of Oliver Cromwell, a 17th century English military and political…
This illustration shows a section of a human kidney (A, Cortical substance; B, Pyramids; C, Hilum; D,…
Any system of coordinate axes to another set which is parallel to the former, but with different origins.
Metric and English systems compared. 25 mm and 1 inch on respective rulers.
A diagram showing the order of the universe as expounded by Ptolemy. Its basic concept surmises that…
"A conduit or canal constructed, especially in a town or city, to carry off superfluous, water, soil,…
"In machinery, the system of shafts which connects machinery with the prime mover, and through which…
"A system of pulleys in two blocks, so arranged that the parts of continuous rope are approximately…
"The aqueous vapor of the atmosphere precipitated in a crystalline form, and falling to the earth in…