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Miss Hope Garland, portrait photograph, 1918 Mar. 25. Creator: Arnold Genthe.

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Miss Hope Garland, portrait photograph, 1918 Mar. ...

'The Marvellous Colour of the Butterflies', 1935. Artist: Unknown.

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'The Marvellous Colour of the Butterflies', 1935. ...

'The Rotundity of the Earth From The Stratosphere', 1935. Artist: Unknown.

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'The Rotundity of the Earth From The Stratosphere'...

'Migrant Birds Visit the Lighthouse', 1935 . Artist: Unknown.

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'Migrant Birds Visit the Lighthouse', 1935 . Artis...

'The Rotundity of the Earth From The Stratosphere', 1935. Artist: Unknown.

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'The Rotundity of the Earth From The Stratosphere'...

'Encyclopedia of Modern Knowledge Part 1 advertisement', 1935. Artist: Unknown.

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'Encyclopedia of Modern Knowledge Part 1 advertise...

'The Giant Planet and His Great Red Spot', 1935. Artist: Unknown.

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'The Giant Planet and His Great Red Spot', 1935. A...

'The Many Colours That Make Up White Light', 1935. Artist: Unknown.

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'The Many Colours That Make Up White Light', 1935....

'The Beautiful Dragonfly's Life Story', 1935. Artist: Unknown.

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'The Beautiful Dragonfly's Life Story', 1935. Arti...

'The Wonderful Tail of the Lyre Bird', 1935. Artist: Unknown.

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'The Wonderful Tail of the Lyre Bird', 1935. Artis...

'How The Kaleidoscope Makes Its Patterns', 1936. Artist: Unknown.

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'How The Kaleidoscope Makes Its Patterns', 1936. A...

'The Different Zones of Vegetation', 1935. Artist: Unknown.

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'The Different Zones of Vegetation', 1935. Artist:...

'The Wonder and Beauty of a Stalactite Cave', 1935. Artist: Unknown.

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'The Wonder and Beauty of a Stalactite Cave', 1935...

'The Mysterious Cone of the Light in the Sky', 1935. Artist: Unknown.

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'The Mysterious Cone of the Light in the Sky', 193...

'How The Fire Engine Puts Out The Fire', 1935. Artist: Unknown.

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'How The Fire Engine Puts Out The Fire', 1935. Art...

'Animals Helped By Spots and Stripes', 1935 . Artist: Unknown.

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'Animals Helped By Spots and Stripes', 1935 . Arti...

'Countries of the World Part 1 advertisement', 1935. Artist: Unknown.

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'Countries of the World Part 1 advertisement', 193...

'The Principal Edible and Poisonous Fungi In The British Isles', 1935 . Artist: Unknown.

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'The Principal Edible and Poisonous Fungi In The B...

'Cirro-Stratus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Cirro-Stratus - A Dozen of the Principal Cloud Fo...

'A Collection of Over Fifty Species of Red, Green and Brown Seaweeds', 1935. Artist: Unknown.

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'A Collection of Over Fifty Species of Red, Green ...

'The Waterspout That Joins Cloud and Sea', 1935. Artist: Unknown.

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'The Waterspout That Joins Cloud and Sea', 1935. A...

'The Story of the Largest British Beetle', 1935 . Artist: Unknown.

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'The Story of the Largest British Beetle', 1935 . ...

'Cirrus - A Dozen of the Principal Cloud Forms In The Sky', 1935 . Artist: Unknown.

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'Cirrus - A Dozen of the Principal Cloud Forms In ...

'Spring - The Physical, Chemical and Biological Changes Wrought By The Sun During The Year', 1935.. Artist: Unknown.

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'Spring - The Physical, Chemical and Biological Ch...

'The Rich Colour of the Colorado Canyon', 1935 . Artist: Unknown.

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'The Rich Colour of the Colorado Canyon', 1935 . A...

'The Strange Appearance of St. Elmo's Fire', 1935. Artist: Unknown.

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'The Strange Appearance of St. Elmo's Fire', 1935....

'In The Land of Everlasting Fire', 1935. Artist: Unknown.

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'In The Land of Everlasting Fire', 1935. Artist: U...

'Summer - The Physical, Chemical and Biological Changes Wrought By The Sun During The Year', 1935 . Artist: Unknown.

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'Summer - The Physical, Chemical and Biological Ch...

'Visitors from Space Reach the Earth', 1935. Artist: Unknown.

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'Visitors from Space Reach the Earth', 1935. Artis...

'The Principal Edible and Poisonous Fungi In The British Isles', 1935. Artist: Unknown.

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'The Principal Edible and Poisonous Fungi In The B...

'An Awe-Inspiring Display of Solar Haloes', 1935. Artist: Unknown.

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'An Awe-Inspiring Display of Solar Haloes', 1935. ...

'Examples of the Different Rocks That Make Up The Earth's Crust', 1935. Artist: Unknown.

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'Examples of the Different Rocks That Make Up The ...

'The Succession of Life in the Rocks', 1935 . Artist: Unknown.

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'The Succession of Life in the Rocks', 1935 . Arti...

' Over Fifty Varieties of Sea Anemones', 1935. Artist: Unknown.

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' Over Fifty Varieties of Sea Anemones', 1935. Art...

'A Diver Working Under Enormous Pressure', 1935. Artist: Unknown.

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'A Diver Working Under Enormous Pressure', 1935. A...

'Cumulus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Cumulus - A Dozen of the Principal Cloud Forms In...

'A Fierce Slave Raid In The Ant World', 1935. Artist: Unknown.

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'A Fierce Slave Raid In The Ant World', 1935. Arti...

'A Hundred Different Knds of Caterpillars of Butterflies and Moths', 1935. Artist: Unknown.

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'A Hundred Different Knds of Caterpillars of Butte...

'Examples of the Different Rocks That Make Up The Earth's Crust', 1935. Artist: Unknown.

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'Examples of the Different Rocks That Make Up The ...

'The Grandeur of the Lightning Flash', 1935 . Artist: Unknown.

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'The Grandeur of the Lightning Flash', 1935 . Arti...

'The Sandstorm Threatens The Travellers', 1935 . Artist: Unknown.

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'The Sandstorm Threatens The Travellers', 1935 . A...

'Poisonous Plants Found in the British Isles', 1935. Artist: Unknown.

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'Poisonous Plants Found in the British Isles', 193...

'Nimbus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Nimbus - A Dozen of the Principal Cloud Forms In ...

'The British Isles and Northern Europe at Noon in mid-winter', 1935. Artist: Unknown.

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'The British Isles and Northern Europe at Noon in ...

'A Hundred Different Knds of Caterpillars of Butterflies and Moths', 1935. Artist: Unknown.

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'A Hundred Different Knds of Caterpillars of Butte...

'Life Half a Mile Below The Sea's Surface', 1935 . Artist: Unknown.

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'Life Half a Mile Below The Sea's Surface', 1935 ....

'Wonderful Britain book advertisement', 1935. Artist: Unknown.

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'Wonderful Britain book advertisement', 1935. Arti...

'What the Mighty Coal Forests Were Like', 1935. Artist: Unknown.

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'What the Mighty Coal Forests Were Like', 1935. Ar...

'The Bright Aurora Lights Up The Icy North', 1935. Artist: Unknown.

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'The Bright Aurora Lights Up The Icy North', 1935....

'The Awe-Inspiring Spectre of the Brocken', 1935. Artist: Unknown.

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'The Awe-Inspiring Spectre of the Brocken', 1935. ...

'Alto-Cumulus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Alto-Cumulus - A Dozen of the Principal Cloud For...

'Strato-Cumulus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Strato-Cumulus - A Dozen of the Principal Cloud F...

'Tropical Fireflies as Dancing Points of Light', 1935. Artist: Unknown.

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'Tropical Fireflies as Dancing Points of Light', 1...

'The Popular Science Educator front cover', 1935. Artist: Unknown.

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'The Popular Science Educator front cover', 1935. ...

'The Marvel of Colour in the Animal World', 1935 . Artist: Unknown.

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'The Marvel of Colour in the Animal World', 1935 ....

'Islands Formed By Tiny Marine Creatures', 1935. Artist: Unknown.

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'Islands Formed By Tiny Marine Creatures', 1935. A...

'Shipping Wonders of the World Part I advertisement', 1935. Artist: Unknown.

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'Shipping Wonders of the World Part I advertisemen...

'The Marvellous Colour of Humming-Birds', 1935. Artist: Unknown.

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'The Marvellous Colour of Humming-Birds', 1935. Ar...

'Cirro-Cumulus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Cirro-Cumulus - A Dozen of the Principal Cloud Fo...

'Alto-Stratus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Alto-Stratus - A Dozen of the Principal Cloud For...

'The Dramatic Birth of a Giant Iceberg', 1935. Artist: Unknown.

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'The Dramatic Birth of a Giant Iceberg', 1935. Art...

'The Strange Fata Morgana Seen in Sicily', 1935. Artist: Unknown.

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'The Strange Fata Morgana Seen in Sicily', 1935. A...

'The Inside of an Active Volcano', 1935 . Artist: Unknown.

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'The Inside of an Active Volcano', 1935 . Artist: ...

'Making Iron in a Modern Blast Furnace', 1935. Artist: Unknown.

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'Making Iron in a Modern Blast Furnace', 1935. Art...

'The Glory of the Sun When Eclipsed', 1935 . Artist: Unknown.

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'The Glory of the Sun When Eclipsed', 1935 . Artis...

'Alto-Cumulo-Castellatus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Alto-Cumulo-Castellatus - A Dozen of the Principa...

'The British Isles and Northern Europe at 6am on mid-summer day', 1935. Artist: Unknown.

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'The British Isles and Northern Europe at 6am on m...

'How A Ship's Captain Uses The Sextant', 1935. Artist: Unknown.

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'How A Ship's Captain Uses The Sextant', 1935. Art...

'The Vital Question of your Child's Future - The Book of Knowledge', 1935. Artist: Unknown.

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'The Vital Question of your Child's Future - The B...

'Arthur Mee's Children's Encyclopedia', 1935. Artist: Unknown.

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'Arthur Mee's Children's Encyclopedia', 1935. Arti...

'A Collection of Over Fifty Species of Red, Green and Brown Seaweeds', 1935. Artist: Unknown.

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'A Collection of Over Fifty Species of Red, Green ...

'Lenticular Cloud Banks - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Lenticular Cloud Banks - A Dozen of the Principal...

'The British Isles and Northern Europe at 6pm on midsummers day', 1935. Artist: Unknown.

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'The British Isles and Northern Europe at 6pm on m...

'The Magnificent Colouring of Some Moths', 1935. Artist: Unknown.

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'The Magnificent Colouring of Some Moths', 1935. A...

'Travelling 14 Miles Up In The Stratosphere', 1935. Artist: Unknown.

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'Travelling 14 Miles Up In The Stratosphere', 1935...

'Winter - The Physical, Chemical and Biological Changes Wrought By The Sun During The Year', 1935. Artist: Unknown.

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'Winter - The Physical, Chemical and Biological Ch...

'Arthur Mee's Children's Encyclopedia', 1935. Artist: Unknown.

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'Arthur Mee's Children's Encyclopedia', 1935. Arti...

'Poisonous Plants Found in the British Isles', 1935. Artist: Unknown.

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'Poisonous Plants Found in the British Isles', 193...

'Stratus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Stratus - A Dozen of the Principal Cloud Forms In...

'The British Isles and Northern Europe at Noon in spring or Autumn', 1935. Artist: Unknown.

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'The British Isles and Northern Europe at Noon in ...

'What Sunrise on the Moon Must Be Like', 1935. Artist: Unknown.

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'What Sunrise on the Moon Must Be Like', 1935. Art...

'Autumn - The Physical, Chemical and Biological Changes Wrought By The Sun During The Year', 1935. Artist: Unknown.

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'Autumn - The Physical, Chemical and Biological Ch...

'Over Fifty Varieties of Sea Anemones', 1935. Artist: Unknown.

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'Over Fifty Varieties of Sea Anemones', 1935. Arti...

'Cumulo-Nimbus - A Dozen of the Principal Cloud Forms In The Sky', 1935. Artist: Unknown.

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'Cumulo-Nimbus - A Dozen of the Principal Cloud Fo...

'The British Isles and France, Belgium and Holland at Noon in mid-summer', 1935. Artist: Unknown.

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'The British Isles and France, Belgium and Holland...

'A Sea Illuminated By Living Nightlights', 1935. Artist: Unknown.

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'A Sea Illuminated By Living Nightlights', 1935. A...

Justus von Liebig, German chemist, at work in his laboratory, mid 19th century (c1885). Artist: Unknown

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Justus von Liebig, German chemist, at work in his ...

Electric discharges in rarefied gases, 1892. Artist: Unknown

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Electric discharges in rarefied gases, 1892. Artis...