Connections in Loveraft's Works

Lovecraft created a universe of inter-connecting stories.  Many characters, locations, supernatural creatures, and (of course!) his famous Necromicon feature in separate stories, even if mentioned only in passing.

The original idea was to map this out and answer questions like which stories are islands?  That is, which stories lack any proper connections to any other works?  Then, of what remains, in what ways are the other works connected to one another.  For example, there are stories that take place primarily in the deamlands whereas others are grounded in earthly locations such as Arkham and the Miskatonic Valley or Innsmouth



Part I: Story Elements (arranged by stories)

Elements mentioned in each story (which are found in at least one other story).  Titles are arranged in chronological order.  You can see how his works increasingly employ these elements over the course of his career.

The Noble Eavesdropper (nonextant) - None known.

The Little Glass Bottle - None.

The Secret Cave or John Lees Adventure - None.

The Mystery of the Grave-Yard - None.

The Haunted House (nonextant) - None known.

The Secret of the Grave (nonextant) - None known.

John, the Detective (nonextant) - None known.

The Mysterious Ship - None.

The Beast in the Cave - None.

The Picture (nonextant) - None known.

The Alchemist - None.

The Tomb - None.

Dagon - Dagon.

A Reminiscence of Dr. Samuel Johnson - None.

Sweet Ermengarde - None.

Polaris - Inutos, Lomar, Olathoë, Pnakotic Manuscripts

The Mystery of Murdon Grange (nonextant) - None known.

The Green Meadow (with Winifred V. Jackson) - None.

Beyond the Wall of Sleep - None.

Memory - None.

Old Bugs - None.

The Transition of Juan Romero - Chaos

The White Ship - None.

The Doom That Came to Sarnath - Bronze Gate, In the Vale of Pnath, Sarnath

The Statement of Randolph Carter - Randolph Carter

The Terrible Old Man - The Terrible Old Man

The Tree - None.

The Cats of Ulthar - Nith, Skai, Ulthar

The Temple - Atlantis

Facts Concerning the Late Arthur Jermyn and His Family - None.

The Street - None.

Life and Death (lost) - None known.

Poetry and the Gods (with Anna Helen Crofts) - None.

Celephaïs - Bronze Gate, Celephaïs, Innsmouth, Kuranes, Leng, Trevor Towers

From Beyond - None.

Nyarlathotep - Nyarlathotep

The Picture in the House - Arkham, Cotton Mather, Miskatonic Valley

The Crawling Chaos (with Winifred V. Jackson) - Crawling Chaos

Ex Oblivione - Bronze Gate

The Nameless City - The mad Arab Abdul Alhazred, City of Pillars, The Elder Race, Irem, Nameless City, Sarnath

The Quest of Iranon - Lomar, Olathoë, Sarnath

The Moon-Bog - None.

The Outsider - Nephren-Ka

The Other Gods - Lomar, The Other Gods, Pnakotic Manuscripts, Skai, Ulthar, Unknown Kadath

The Music of Erich Zann - None.

Herbert West—Reanimator - Arkham, Meadow Hill, Miskatonic University

Hypnos - None.

What the Moon Brings - None.

Azathoth - Azathoth

The Horror at Martin’s Beach (with Sonia H. Greene) - None.

The Hound - The mad Arab Abdul Alhazred, The Hound, Leng, The Necronomicon

The Lurking Fear - None.

The Rats in the Walls - Nyarlathotep

The Unnamable - Arkham, Randolph Carter, Cotton Mather, Meadow Hill, St. Mary’s Hospital

Ashes (with C. M. Eddy, Jr.) - None.

The Ghost-Eater (with C. M. Eddy, Jr.) - None.

The Loved Dead (with C. M. Eddy, Jr.) - None.

The Festival - The mad Arab Abdul Alhazred, Arkham, The Necronomicon, St. Mary’s Hospital

Deaf, Dumb, and Blind (with C. M. Eddy, Jr.) - None.

Under the Pyramids (with Harry Houdini) - Khem

The Shunned House - Brown University

The Horror at Red Hook - None.

He - None.

In the Vault - None.

The Descendant - The mad Arab Abdul Alhazred, Atlantis, Nameless City, The Necromicon

Cool Air - None.

The Call of Cthulhu - The mad Arab Abdul Alhazred, Atlantis, Brown University, City of Pillars, College Street, Cthulhu, Irem, Lemuria, The Necronomicon, Great Ones, Old Ones, R’lyeh, The Vigilant (ship)

Two Black Bottles (with Wilfred Blanch Talman) - Ghouls

Pickman’s Model - Richard Upton Pickman

The Silver Key - Arkham, Randolph Carter, Miskatonic River, The Silver Key, Skai, Ulthar

The Strange High House in the Mist - Arkham, Atlantis, Miskatonic River, The Elder Ones, Terrible Old Man, Ulthar

The Dream-Quest of Unknown Kadath - Arkham, Azathoth, Bronze Gate, Randolph Carter, Celephaïs, Crawling Chaos, In the Vale of Pnath, Kuranes, Leng, Lomar, Nyarlathotep, Olathoë, Elder Ones, Great Ones, Other Gods, Richard Upton Pickman, Pnakotic Manuscripts, Skai, Trevor Towers, Ulthar, Unknown Kadath

The Case of Charles Dexter Ward - The mad Arab Abdul Alhazred, Brown University, Randolph Carter, Court of Oyer and Terminer, The Gazette (Providence Gazette and Country-Journal), Judge Hathorne, John Hay Library, The Journal, Cotton Mather, The Necronomicon, Nephren-Ka, Yog-Sothoth

The Colour Out of Space - Arkham, The Colour Out Of Space, The Gazette (Providence Gazette and Country-Journal), Meadow Hill, Miskatonic University

The Very Old Folk - None.

The Thing in the Moonlight (spurious) - The mad Arab Abdul Alhazred, College Street

The Last Test (with Adolphe de Castro) - The mad Arab Abdul Alhazred, Atlantis, City of Pillars, Crawling Chaos (synonym for Nyarlathotep), Nyarlathotep, Shub-Niggurath, Yog-Sothoth

History of the Necronomicon - The mad Arab Abdul Alhazred, Arkham, City of Pillars, Cthulhu, Irem, Miskatonic University, The Necronomicon, Richard Upton Pickman, Yog-Sothoth

The Curse of Yig (with Zealia Bishop) - Yig

Ibid - None.

The Dunwich Horror - The mad Arab Abdul Alhazred, Aklo, Cthulhu, Dunwich, Mass., The Elder Race, Miskatonic river, The Necronomicon, The Old Ones, Shub-Niggurath, Yog-Sothoth

The Electric Executioner (with Adolphe de Castro) - Cthulhu, R’lyeh, Yig

The Mound (with Zealia Bishop) - Atlantis, Cthulhu, K’n-yan, Lemuria, Lomar, Nith, N’kai, Nyarlathotep, Olathoë, Shub-Niggurath, Tsathoggua, Yig, Yoth

Medusa’s Coil (with Zealia Bishop) - Atlantis, Cthulhu, Lemuria, The Necronomicon, Elder Ones, R’lyeh, Shub-Niggurath, Unknown Kadath

The Whisperer in Darkness - The mad Arab Abdul Alhazred, Arkham, Black Goat of the Woods, Commoriom, Cthulhu, The Elder Race, The Hound, K’n-yan, Leng, Mi-Go, Miskatonic University, The Necronomicon, N’kai, Nyarlathotep, The Old Ones, The Outer Ones, Pnakotic Manuscripts, R’lyeh, Saltonstall Street, Shub-Niggurath, Tsathoggua, Albert N. Wilmarth, Yig, Yog-Sothoth, Yoth, Yuggoth

At the Mountains of Madness - The mad Arab Abdul Alhazred, Arkham, Atlantis, The Colour Out Of Space, Commoriom, Cthulhu, Lemuria, Leng, Lomar, Mi-Go, Miskatonic University, Nameless City, The Necronomicon, Olathoë, The Elder Ones, The Old Ones, Pnakotic Manuscripts, R’lyeh, Shoggoths, Tsathoggua, Valusia, Albert N. Wilmarth, Yog-Sothoth

The Shadow Over Innsmouth - Zadok Allen, Arkham, Cthulhu, Dagon, High Street, Innsmouth, Father Iwanicki (appears only in the discarded draft, not the final version), John Hay Library, Miskatonic University, The Old Ones, R’lyeh, Shoggoths

The Trap (with Henry S. Whitehead) - None.

The Dreams in the Witch House - The mad Arab Abdul Alhazred, Arkham, Azathoth, The Black Book, The Black Man, Book of Eibon, Court of Oyer and Terminer, Crawling Chaos, Judge Hathorne, Haverhill, Massachusetts, Innsmouth, Father Iwanicki, Cotton Mather, Meadow Hill, Miskatonic University, Miskatonic Avenue, Miskatonic river, The Necronomicon, Nyarlathotep, Saltonstall Street, Shub-Niggurath, Unaussprechlichen Kulten

The Man of Stone (with Hazel Heald) - Black Goat of the Woods, The Black Man, Book of Eibon, R’lyeh, Shub-Niggurath, Tsathoggua, Yoth

The Horror in the Museum (with Hazel Heald) - Azathoth, Book of Eibon, Cthulhu, Leng, Lomar, The Necronomicon, Pnakotic Manuscripts, Shub-Niggurath, Tcho-Tcho, Tsathoggua, Unaussprechlichen Kulten, Yog-Sothoth

Through the Gates of the Silver Key (with E. Hoffmann Price) - The mad Arab Abdul Alhazred, Arkham, Randolph Carter, Cthulhu, Irem, the City of Pillars, Leng, Lomar, Naacal, The Necronomicon, Pnakotic Manuscripts, R’lyeh, The Silver Key, Skai, Tsathoggua, Ulthar, Yian-Ho, Yog-Sothoth, Yuggoth

Winged Death (with Hazel Heald) - Central Station, High Street

Out of the Aeons (with Hazel Heald) - The mad Arab Abdul Alhazred, Atlantis, The Black Book, Book of Eibon, Randolph Carter, K’n-yan, Leng, Naacal, The Necronomicon, The Elder Ones, Pnakotic Manuscripts, Saltonstall Street, Shub-Niggurath, Tsathoggua, Yig, Yuggoth

The Thing on the Doorstep - The mad Arab Abdul Alhazred, Arkham, Azathoth, Book of Eibon, High Street, Innsmouth, Miskatonic River, Miskatonic University, Miskatonic Club, The Necronomicon, Saltonstall Street, Shoggoths, Shub-Niggurath, Unaussprechlichen Kulten

The Evil Clergyman - None.

The Horror in the Burying-Ground (with Hazel Heald) - None.

The Hoard of the Wizard-Beast (with R. H. Barlow) - None.

The Slaying of the Monster (with R. H. Barlow) - None.

The Book - None.

The Tree on the Hill (with Duane W. Rimel) - Black Goat of the Woods

The Battle that Ended the Century (with R. H. Barlow) - Valusia

The Shadow Out of Time - The mad Arab Abdul Alhazred, Zadok Allen, Arkham, Atlantis, Book of Eibon, Cultes des Goules, The Elder Race, Eltdown Shards, Haverhill, Massachusetts, Inutos, Lomar, Miskatonic University, The Necronomicon, Nyarlathotep, Pnakotic Manuscripts, Tcho-Tcho, Tsathoggua, Unaussprechlichen Kulten, Valusia, Vermis Mysteriis, De

“Till A’ the Seas” (with R.H. Barlow) - The Elder Race

Collapsing Cosmoses (with R.H. Barlow) - None.

The Challenge from Beyond (with C. L. Moore; A. Merritt; Robert E. Howard, and Frank Belknap Long) - Eltdown Shards

The Disinterment (with Duane W. Rimel) - None.

The Diary of Alonzo Typer (with William Lumley) - Aklo, Book of Dzyan, Book of Eibon, Eltdown Shards, Lemuria, The Necronomicon, Pnakotic Manuscripts, Shub-Niggurath, Valusia, Vermis Mysteriis, De, Yian-Ho

The Haunter of the Dark - Aklo, Atlantis, Azathoth, Book of Dzyan, Brown University, Central Station, Chaos, College Street, Cultes des Goules, In the Vale of Pnath, John Hay Library, The Journal, Khem, Lemuria, The Necronomicon, Nephren-Ka, Nyarlathotep, Pnakotic Manuscripts, Unaussprechlichen Kulten, Valusia, Vermis Mysteriis, De, Yog-Sothoth

In the Walls of Eryx (with Kenneth Sterling) - None.

The Night Ocean (with R.H. Barlow) - None.

The Last Test (with Adolphe de Castro) - The mad Arab Abdul Alhazred, Atlantis, City of Pillars, Crawling Chaos (synonym for Nyarlathotep), Nyarlathotep, Shub-Niggurath, Yog-Sothoth

Bothon - Atlantis, Lemuria, Naacal

The Shunned House - Brown University

Medusa's Coil (with Zealia Bishop) - Atlantis, Cthulhu, The Elder Ones, Lemuria, The Necronomicon, R’lyeh, Shub-Niggurath, Unknown Kadath

The Ancient Track (poem) - Dunwich, Mass.

Fungi from Yuggoth (poem) - Arkham, Chaos, The Elder Ones, Innsmouth, Leng, The Necronomicon, Shoggoths, Yuggoth


Part II: Story Elements (arranged by elements)

The reverse of the previous list.  Elements are arranged in alphabetical order.  Under each is a list of stories in which each respective element appears.  Stories are listed chronologically, first those by Lovecraft, then collaborative works are arraged chronologically after that.

The mad Arab Abdul Alhazred (Note that he is even mentioned in several stories where the Necromicon does not feature and isn't even referenced: The Nameless City, The Thing in the Moonlight, and The Last Test.)

Aklo

Zadok Allen

Arkham
Note: Every mention of Miskatonic University equals Arkham since the former lies within the latter.

Atlantis

Azathoth

Black Book, The

Black Goat of the Woods

Black Man, The

Book of Dzyan

Book of Eibon

Bronze Gate

Brown University

Randolph Carter

Central Station

Celephaïs

Chaos (only where capitalized and not "Crawling Chaos")

City of Pillars

College Street

Colour Out Of Space, The

Commoriom

Court of Oyer and Terminer

Crawling Chaos (synonym for Nyarlathotep)

Cthulhu

Cultes des Goules

Dagon

Dunwich, Mass.

Elder Race, The

Eltdown Shards

Gazette, The (Providence Gazette and Country-Journal)

Ghouls

Hathorne, Judge

Haverhill, Massachusetts

High Street

Hound, The (or Hounds of Tindal?)

In the Vale of Pnath

Innsmouth

Inutos

Irem, the City of Pillars

Iwanicki, Father

John Hay Library

Journal, The

Khem

K’n-yan

Kuranes

Lemuria

Leng

Libraries (Whether we're talking about that of Miskatonic University or a library in a private residence, these feature disproportionately in Lovecraft's works).

Lomar

Mather, Cotton

Meadow Hill

Mi-Go

Miskatonic
The word is used in several contexts regarding the region.  Most famously, there is the university (and its library), then there is the river and valley, plus a street and even the club.  Interesting bit of trivia: The word Miskatonic in any context is never mentioned in any collaborative story, only in Lovecraft's solo works.

Naacal

Nameless City

The Necronomicon

Nephren-Ka

Nith

N’kai

Nyarlathotep

Olathoë

Ones (This term is always preceded by a superlative.  I collected all of these in one place on this list.)

Great Ones

Other Gods

Old Ones

Outer Ones, The

Richard Upton Pickman

Pnakotic Manuscripts (or fragments)

R’lyeh

Saltonstall Street

Sarnath

Shoggoths

Shub-Niggurath

Silver Key

Skai

Tcho-Tcho

St. Mary’s Hospital

Terrible Old Man

Trevor Towers

Tsathoggua

Ulthar

Unaussprechlichen Kulten

Unknown Kadath

Valusia

Vermis Mysteriis, De

Vigilant, The

Wilmarth, Albert N.

Yian-Ho (city)

Yig

Yog-Sothoth

Yoth

Yuggoth


Part III: Putting it all together: Story connections by elements

This section looks at which stories are connected to other stories through their common elements.  The related stories are listed under each story (arranged in chronological order), followed by which element(s) connect(s) each story to the one in the heading.  The stories listed under each heading are in strict alphabetical order (i.e., even by articles such as "A" or "The").

Dagon


Polaris

The Transition of Juan Romero

The Doom That Came to Sarnath

The Statement of Randolph Carter

The Terrible Old Man

The Cats of Ulthar

The Temple

Celephaïs

Nyarlathotep

The Picture in the House

The Crawling Chaos (with Winifred V. Jackson)

Ex Oblivione

The Nameless City

The Quest of Iranon

The Outsider

The Other Gods

Herbert West—Reanimator

Azathoth

The Hound

The Rats in the Walls

The Unnamable

The Festival

Under the Pyramids (with Harry Houdini)

The Descendant

The Call of Cthulhu

The Silver Key

The Strange High House in the Mist

The Dream-Quest of Unknown Kadath

The Case of Charles Dexter Ward

The Colour Out of Space

The Thing in the Moonlight (spurious)

The Last Test (with Adolphe de Castro)

History of the Necronomicon

The Curse of Yig (with Zealia Bishop)

The Dunwich Horror

The Electric Executioner (with Adolphe de Castro)

The Mound (with Zealia Bishop)

Medusa’s Coil (with Zealia Bishop)

The Whisperer in Darkness

At the Mountains of Madness

The Shadow Over Innsmouth

The Dreams in the Witch House

The Man of Stone (with Hazel Heald)

The Horror in the Museum (with Hazel Heald)

Through the Gates of the Silver Key (with E. Hoffmann Price)

Winged Death (with Hazel Heald)

Out of the Aeons (with Hazel Heald)

The Thing on the Doorstep

The Tree on the Hill (with Duane W. Rimel)

The Battle that Ended the Century (with R. H. Barlow)

The Shadow Out of Time

“Till A’ the Seas” (with R.H. Barlow)

The Challenge from Beyond (with C. L. Moore; A. Merritt; Robert E. Howard, and Frank Belknap Long)

The Diary of Alonzo Typer (with William Lumley)

The Haunter of the Dark

The Last Test (with Adolphe de Castro)

Bothon

The Shunned House

The Ancient Track (poem)

Fungi from Yuggoth (poem)


Part IV: Putting it all together: Stories with elements in common with other stories

This section looks at which stories are connected to other stories through their common elements.  The connecting element(s) are listed under each story title (arranged in chronological order), followed by which story those elements tie it back to in the heading.  The elements listed under each are in alphabetical order.

Dagon - Features:

Polaris - Features:

The Transition of Juan Romero - Features:

The Doom That Came to Sarnath - Features:

The Statement of Randolph Carter - Features:

The Terrible Old Man - Features:

The Cats of Ulthar - Features:

The Temple - Features:

Celephaïs - Features:

Nyarlathotep - Features:

The Picture in the House - Features:

The Crawling Chaos (with Winifred V. Jackson) -
Features:

Ex Oblivione - Features:

The Nameless City -
Features:

The Quest of Iranon -
Features:

The Outsider - Features:

The Other Gods -
Features:

Herbert West—Reanimator -
Features:

Azathoth -
Features:

The Hound -
Features:

The Rats in the Walls -
Features:

The Unnamable -
Features:

The Festival -
Features:

Under the Pyramids (with Harry Houdini) - Features:

The Descendant - Features:

The Call of Cthulhu -
Features:

Pickman’s Model -
Features:

The Silver Key -
Features:

The Strange High House in the Mist -
Features:

The Dream-Quest of Unknown Kadath -
Features:

The Case of Charles Dexter Ward -
Features:

The Colour Out of Space -
Features:

The Thing in the Moonlight (spurious) -
Features:

The Last Test (with Adolphe de Castro) -
Features:

History of the Necronomicon -
Features:

The Curse of Yig (with Zealia Bishop) -
Features:

The Dunwich Horror -
Features:

The Electric Executioner (with Adolphe de Castro) -
Features:

The Mound (with Zealia Bishop) -
Features:

Medusa’s Coil (with Zealia Bishop) -
Features:

The Whisperer in Darkness -
Features:

At the Mountains of Madness -
Features:

The Shadow Over Innsmouth -
Features:

The Dreams in the Witch House -
Features:

The Man of Stone (with Hazel Heald) -
Features:

The Horror in the Museum (with Hazel Heald) -
Features:

Through the Gates of the Silver Key (with E. Hoffmann Price) -
Features:

Winged Death (with Hazel Heald) -
Features:

Out of the Aeons (with Hazel Heald) -
Features:

The Thing on the Doorstep -
Features:

The Tree on the Hill (with Duane W. Rimel) -
Features:

The Battle that Ended the Century (with R. H. Barlow) -
Features:

The Shadow Out of Time -
Features:

“Till A’ the Seas” (with R.H. Barlow) -
Features:

The Challenge from Beyond (with C. L. Moore; A. Merritt; Robert E. Howard, and Frank Belknap Long) -
Features:

The Diary of Alonzo Typer (with William Lumley) -
Features:

The Haunter of the Dark -
Features:

The Last Test (with Adolphe de Castro) -
Features:

Bothon -
Features:

The Shunned House -
Features:

The Ancient Track (poem) -
Features:

Fungi from Yuggoth (poem) -
Features:


Part V: Connections quantified

Using the data from Part III, I counted the number of connections in each story to other stories.  This is the number of elements found in other stories.  This is straight-forward, sure, but it doesn't give any weights to more significant elements.  So the presence of a major character (e.g., Randolph Carter) is as significant as the story making reference to general geographical regions or features such as Arkham or the Miskatonic River.  Still, this is an interesting way to look at the connectivity of each story.  Bear in mind that longer works have the advantage of more space in which to reference other stories through common elements, so they can more easily climb this list.  On the other hand, all the name-dropping the brief "The History of the Necronomicon" beats even the sprawling "Dunwich Horror," so there's more than one factor at work in making assessments of connectivity.  Style and focus are important as well.  This is all in fun though, so enjoy.

At the Mountains of Madness (164)
The Whisperer in Darkness (156)
Through the Gates of the Silver Key (with E. Hoffmann Price) (138)
The Shadow Out of Time (129)
The Dreams in the Witch House (121)
Out of the Aeons (with Hazel Heald) (111)
The Thing on the Doorstep (101)
The Dream-Quest of Unknown Kadath (99)
The Haunter of the Dark (97)
The Horror in the Museum (with Hazel Heald) (95)
The Call of Cthulhu (87)
History of the Necronomicon (86)
The Dunwich Horror (78)
The Mound (with Zealia Bishop) (74)
Medusa’s Coil (with Zealia Bishop) (68)
The Case of Charles Dexter Ward (64)
The Diary of Alonzo Typer (with William Lumley) (61)
Fungi from Yuggoth (poem) (60)
The Last Test (with Adolphe de Castro) (60)
The Shadow Over Innsmouth (60)
The Festival (51)
The Descendant (47)
The Strange High House in the Mist (43)
The Hound (42)
The Silver Key (37)
The Man of Stone (with Hazel Heald) (35)
The Colour Out of Space (32)
The Nameless City (31)
The Unnamable (31)
The Other Gods (30)
Herbert West—Reanimator (29)
Polaris (23)
The Picture in the House (22)
The Electric Executioner (with Adolphe de Castro) (21)
Bothon (19)
Celephaïs (18)
The Thing in the Moonlight (spurious) (18)
The Quest of Iranon (14)
The Temple (11)
The Cats of Ulthar (10)
Nyarlathotep (8)
The Rats in the Walls (8)
The Doom That Came to Sarnath (7)
Azathoth (6)
Pickman’s Model (6)
The Statement of Randolph Carter (6)
“Till A’ the Seas” (with R.H. Barlow) (4)
The Battle that Ended the Century (with R. H. Barlow) (4)
The Crawling Chaos (with Winifred V. Jackson) (4)
The Curse of Yig (with Zealia Bishop) (4)
The Shunned House (4)
Ex Oblivione (3)
The Transition of Juan Romero (3)
Winged Death (with Hazel Heald) (3)
The Challenge from Beyond (with C. L. Moore; A. Merritt; Robert E. Howard, and Frank Belknap Long) (2)
The Outsider (2)
The Tree on the Hill (with Duane W. Rimel) (2)
Dagon (1)
The Ancient Track (poem) (1)
The Terrible Old Man (1)
Under the Pyramids (with Harry Houdini) (1)


Part VI: Bonus round: Frequently-used names

In addition to his characters appearing in multiple stories, Lovecraft also liked to re-use sur names across his works.  Sometimes a proper name would appear in one story belonging to a character, then re-appear in another as a street name.

Angells

Atwoods

Babsons

Carters

Dexters

Fenners

Ornes

Pecks

Pickmans

Sargents

Uptons

Whateleys

Finally... The Gods Themselves!

Ones (This term is always preceded by a superlative.  I collected all of these in one place on this list.)


Further reading

The Cthulhu Lexicon - I used this resource heavily in compiling the list of common elements.

   

Copyright 2013 the Ale[x]orcist.
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