Principle Collection

Flettner rotor diagram on a boat. A Flettner rotor is a smooth cylinder with disc end plates which is spun along its long axis and, as air passes at right angles across it

Dr Barnardos Home, Barkingside - aerial view
An aerial view of Dr Barnardos Village Home for Girls at Barkingside in Essex. The home was established on the cottage homes principle

Cinderella at the London Hippodrome
Cinderella, the first pantomime at the London Hippodrome, which received rave reviews. Top photographs show Hetty Chattel as the Prince, Ruth Lytton as Dandini and Amy Farrell as Cinderella

Lecture on Stephen Grays discoveries in electricity
A lecture at the Charterhouse, London on Stephen Grays discoveries in electricity. In the early eighteenth century, Gray demonstrated that charges of electricity could be conducted by some materials

Rat / Egyptian Sun God
RAT - the female principle of the sun-god Re

Converting a London telephone exchange
Front cover photograph of the stupendous task of converting a London telephone exchange to the new Automatic Principle. Date: October 1926

Hsi Wang Mu / Yin / Werner
HSI WANG MU The female (yin) principle of the Western Air

Demonstrating the cantilever principle of the Forth Railway Bridge

Forth Bridge Construction demonstrating cantilever principle
Forth Bridge Construction, demonstrating the cantilever principle Date: 19th century

Construction of Forth Railway Bridge - cantilever principle
Construction of the Forth Railway Bridge - demonstrating the cantilever principle - Victorian period Date: 19th century

The Gilles are the oldest and principal participants in the Carnival of Binche in Belgium. They go out on Shrove Tuesday from 4 am until late hours and dance to traditional songs

A photograph of a young woman called Lily, dressed up as Aladdin, either for a fancy dress or event, or perhaps a pantomime. Date: 1927

Beefeater
A painting of a Yeomen Warder of Her Majestys Royal Palace and Fortress the Tower of London, and Member of the Sovereigns Body Guard of the Yeoman Guard Extraordinary, popularly known as a Beefeater

Dick Whittington at the London Hippodrome, 1903
Dick Whittington at the London Hippodrome in 1903. Top left, Dick and his sweetheart played by Ruth Lytton and Fanny Dango. Top right, Dick with his cat (played by Mr Fred Farren Jnr)

The Golden Princess & the Elephant Hunters, Hippodrome
Scene from The Golden Princess and the Elephant Hunters, the Christmas production at the London Hippodrome, with Miss Ened Hett as the princess and Hetty Chattell as the Silver Prince

Fay Compton in Dick Whittington at London Hippodrome
Fay Compton in the role of Dick Whittington for the pantomime Dick Whittington at the London Hippodrome in 1932-3. Date: 1932

Orbital Activity Demo

Llull, Ramon (1233 / 1235-1315 / 1316). Majorcan writer and phi
Llull, Ramon (1233/1235-1315/1316). Majorcan writer and philosopher. Engraving of Arbor Scientiae (Tree of Science) published in Leiden in 1635

HYGIENE MUSEUM DRESDEN
The Deutsche Hygiene Museum at Dresden is a tribute to the healthy regime made available by the National Socialist principle of Kraft durch Freude (Strength through joy). Date: circa 1938

Vesta Tilley in pantomime at Drury Lane
Vesta Tilley (1864-1952), born Matilda Alice Powles, later Lady de Frece, music hall actress whose speciality was male impersonations

American Indians. The Peaceful extinction of the red Indian
In all their war paint, Chiefs of the vanishing Sioux tribe. The Sioux were originally the principle tribe in Dakota. By 1851 they had lost nearly all of their land

Water Tricycle - 5
The nautical velocipede of Georg Pinkert, of Hamburg, Germany, operates on the paddle-wheel principle. It travels at 15 km/h on land, 12 km/h on water

Yuan Shi T ien-Tsun
YUAN SHI T IEN-TSUN Taoist deity, First Principle of the Universe, portrayed riding on a fierce monster

Map - Praehagraphy of England
Praehagraphy of England, being a map of that Kingdom illustrative of the principle battles fought in it. Engraved map showing the principle battles fought in England, 55 BC-1745; by the geographer

Woods Wood Engraving Establishment -- new principle of consecutive wood engraving. 19th century

War is a Business
English Foreign Minister Sir Edward Grey is depicted by the Germans as acting on the principle that War is a business like any other Date: August 1914

Jet propulsion explained by G. H. Davis
Jet propulsion explained: a system in its practical stage at this phase of the Second World War. Drawings explaining the principle employed in Britains new jet-propelled fighter aircraft. 1944

British target-finding invention by G. H. Davis
Bombing through clouds during the Second World War: a British target-finding invention. Illustrating the Gen-Box principle, which sees targets invisible to the human eye. Date: 1944

Our forefathers fought for a principle - there is no fight in us. Illustration shows two scenes, at top left is The Spirit of 76 showing a family about to sit down to tea

Turkey - The Walls of Ani
Turkey - The Main Gate and the city Walls of Ani (formerly in Armenia) Date: circa 1910s

American Indians. The peaceful extincion oif the red indian
In all their war paint, Chiefs of the vanishing Sioux tribe. The Sioux were originally the principle tribe in Dakota. By 1851 they had lost nearly all of their land

Charleston, South Carolina, 1861
Engraving showing the principle church in Charleston, South Carolina, and the main street, 1861

A sauterelle, or grasshopper, being loaded with grenades by French soldiers. Working on a cross-bow principle, the sauterelle could throw grenades a distance of ninety yards

American Indians. The peaceful extinctoin of the red indian
In all their war paint, Chiefs of the vanishing Sioux tribe. The Sioux were originally the principle tribe in Dakota. By 1851 they had lost nearly all of their land

Pygmalion & Statue
Although he detests women on principle, the sculptor Pygmalion falls in love with his statue, and Aphrodite brings her to life, they marry, have a child Paphia

Autographic telegraphy
D Arlincourts autographic telegraph, able to transmit a copy of handwriting by electric currents. Several versions based on a similar principle were in circulation during the mid-19th century

Tide predicting machine: front view
Photograph of the front view of the tide-predicting machine, designed by Lord Kelvin in 1876. Constructed by Lege for the Indian government

Musschenbroek / Leyden Jar
Pieter van Musschenbroek, Dutch mathematician and physicist, performs electrical experiments at Leide, where he is a Professor. He discovered the principle of Leyden jar

The patent elevator and observatory
Engraving of the patent elevator and observatory showing a man being elevated into the air for viewing purposes. During the siege of Sebastopol a view of the enemys works was required

William Flinders Petrie
SIR WILLIAM MATTHEW FLINDERS PETRIE English Egyptologist. Developed principle of sequence dating of potsherds

Commencement of the tunnel at Kings Cross
The commencement of the tunnel at Kings Cross. Kings Cross was proposed to be a principle terminal station. The underground was deemed to be the solution for convenient travel in densely populated

Cowpers Writing Telegraph
A diagram of Cowpers writing telegraph. Invented in 1878 by William Cowper (1819-1893), the machine was able to reproduce a message written some distance away by a process of interrupted electrical

Marine telephone
A telephone or marine alarum being used by a sailor. This worked on the principle of sending air through a series of valves and pistons to make various notes

Key Buildings 1850 / World
A comparative view of the principle buildings of the World in 1850 including the High Level Bridge - St Peters Rome - The Great Pyramid - The Porcelain Pagoda in Nanjing

C P SCOTT
CHARLES PRESTWICH SCOTT, influential editor of the Manchester Guardian, who enunciated the principle Comment is free, but facts are sacred

Death of Tory Principle
THE FUNERAL OF TORY PRINCIPLE Dutifully Dedicated to the HOLY ALLIANCE A procession of Tory grandees mourn the abandonment of their principles (Wellington 3rd l)

Telescope discovery
Jacob Metzu, lensmaker of Middelburg, discovers principle of telescope when his son plays with lenses. Oddly, his fellow-townsman Lippershey does precisely the same

American Soldier-Hero
THE AMERICAN SOLDIER-HERO As a young man he volunteered To fight for the red, white and blue; And to this principle adhered When of our Nations peril he knew

All Professionally Made to Order for Quick Shipping