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- Abbe Prevost - MANON LESCAUT
- Alcott, Louisa M. - LITTLE MEN
- Alcott, Louisa M. - LITTLE WOMEN
- Alcott, Louisa May - JACK AND JILL
- Austen, Jane - EMMA
- Austen, Jane - MANSFIELD PARK
- Austen, Jane - NORTHANGER ABBEY
- Austen, Jane - PERSUASION
- Austen, Jane - PRIDE AND PREJUDICE
- Austen, Jane - SENSE AND SENSIBILITY
- Ballantyne, R. B. - THE CORAL ISLAND
- Balzac, Honore de - EUGENIE GRANDET
- Balzac, Honore de - FATHER GORIOT
- Baroness Orczy - THE SCARLET PIMPERNEL
- Barrie, James M. - PETER PAN
- Blackmore, R. D. - LORNA DOONE
- Boccaccio, Giovanni - DECAMERONE
- Bronte, Charlotte - JANE EYRE
- Bronte, Emily - WUTHERING HEIGHTS
- Buchan, John - PRESTER JOHN
- Buchan, John - THE THIRTY-NINE STEPS
- Bunyan, John - THE PILGRIM'S PROGRESS
- Burnett, Frances H. - A LITTLE PRINCESS
- Burnett, Frances H. - LITTLE LORD FAUNTLEROY
- Burnett, Frances H. - THE SECRET GARDEN
- Butler, Samuel - EREWHON
- Carroll, Lewis - ALICE IN WONDERLAND
- Carroll, Lewis - THROUGH THE LOOKING-GLASS
- Chaucer, Geoffrey - THE CANTERBURY TALES
- Chesterton, G. K. - A SHORT HISTORY OF ENGLAND
- Chesterton, G. K. - THE INNOCENCE OF FATHER BROWN
- Chesterton, G. K. - THE MAN WHO KNEW TOO MUCH
- Chesterton, G. K. - THE MAN WHO WAS THURSDAY
- Chesterton, G. K. - THE WISDOM OF FATHER BROWN
- Childers, Erskine - THE RIDDLE OF THE SANDS
- Christie, Agatha - THE MYSTERIOUSAFFAIR AT STYLES
- Christie, Agatha - THE SECRET ADVERSARY
- Collins, Wilkie - THE MOONSTONE
- Collodi, Carlo - THE ADVENTURES OF PINOCCHIO
- Conan Doyle, Arthur - A STUDY IN SCARLET
- Conan Doyle, Arthur - MEMOIRS OF SHERLOCK HOLMES
- Conan Doyle, Arthur - THE ADVENTURES OF SHERLOCK HOLMES
- Conan Doyle, Arthur - THE HOUND OF THE BASKERVILLES
- Conan Doyle, Arthur - THE SIGN OF THE FOUR
- Conrad, Joseph - HEART OF DARKNESS
- Conrad, Joseph - LORD JIM
- Conrad, Joseph - NOSTROMO
- Conrad, Joseph - THE NIGGER OF THE NARCISSUS
- Conrad, Joseph - TYPHOON
- Darwin, Charles - THE AUTOBIOGRAPHY OF CHARLES DARWIN
- Darwin, Charles - THE ORIGIN OF SPECIES
- Defoe, Daniel - MOLL FLANDERS
- Defoe, Daniel - ROBINSON CRUSOE
- Dickens, Charles - A CHRISTMAS CAROL
- Dickens, Charles - A TALE OF TWO CITIES
- Dickens, Charles - BLEAK HOUSE
- Dickens, Charles - DAVID COPPERFIELD
- Dickens, Charles - GREAT EXPECTATIONS
- Dickens, Charles - HARD TIMES
- Dickens, Charles - LITTLE DORRIT
- Dickens, Charles - MARTIN CHUZZLEWIT
- Dickens, Charles - OLIVER TWIST
- Dickens, Charles - PICTURES FROM ITALY
- Dickens, Charles - THE MYSTERY OF EDWIN DROOD
- Dickens, Charles - THE PICKWICK PAPERS
- Dostoevsky, Fyodor - CRIME AND PUNISHMENT
- Dostoyevsky, Fyodor - THE BROTHERS KARAMAZOV
- Du Maurier, George - TRILBY
- Dumas, Alexandre - THE COUNT OF MONTE CRISTO
- Dumas, Alexandre - THE MAN IN THE IRON MASK
- Dumas, Alexandre - THE THREE MUSKETEERS
- Eliot, George - ADAM BEDE
- Eliot, George - DANIEL DERONDA
- Eliot, George - MIDDLEMARCH
- Eliot, George - SILAS MARNER
- Eliot, George - THE MILL ON THE FLOSS
- Equiano - AUTOBIOGRAPHY
- Esopo - FABLES
- Fenimore Cooper, James - THE LAST OF THE MOHICANS
- Fielding, Henry - TOM JONES
- Flaubert, Gustave - MADAME BOVARY
- Frank Baum, L. - THE WONDERFUL WIZARD OF OZ
- Frazer, James George - THE GOLDEN BOUGH
- Freud, Sigmund - DREAM PSYCHOLOGY
- Galsworthy, John - THE FORSYTE SAGA
- Gilbert and Sullivan - PLAYS
- Gogol - DEAD SOULS
- Goldsmith, Oliver - SHE STOOPS TO CONQUER
- Goldsmith, Oliver - THE VICAR OF WAKEFIELD
- Grahame, Kenneth - THE WIND IN THE WILLOWS
- Hardy, Thomas - FAR FROM THE MADDING CROWD
- Hardy, Thomas - JUDE THE OBSCURE
- Hardy, Thomas - TESS OF THE D'URBERVILLES
- Hardy, Thomas - THE MAYOR OF CASTERBRIDGE
- Hawthorne, Nathaniel - THE SCARLET LETTER
- Hobbes, Thomas - LEVIATHAN
- Hope, Anthony - THE PRISONER OF ZENDA
- Hornung, E. W. - MR. JUSTICE RAFFLES
- Ibsen, Henrik - AN ENEMY OF THE PEOPLE
- Ibsen, Henrik - CASA DI BAMBOLA
- Ibsen, Henrik - GHOSTS
- Ibsen, Henrik - HEDDA GABLER
- Ibsen, Henrik - JOHN GABRIEL BORKMAN
- Ibsen, Henrik - PILLARS OF SOCIETY
- Ibsen, Henrik - ROSMERHOLM
- Ibsen, Henrik - THE LADY FROM THE SEA
- Ibsen, Henrik - THE MASTER BUILDER
- Ibsen, Henrik - WHEN WE DEAD AWAKEN
- Irving, Washington - THE LEGEND OF SLEEPY HOLLOW
- James, Henry - ITALIAN HOURS
- James, Henry - THE BOSTONIANS
- James, Henry - THE PORTRAIT OF A LADY
- James, Henry - THE TURN OF THE SCREW
- James, Henry - WASHINGTON SQUARE
- Jerome, Jerome K. - THREE MEN IN A BOAT
- Jerome, Jerome K. - THREE MEN ON THE BUMMEL
- Jonson, Ben - THE ALCHEMIST
- Jonson, Ben - VOLPONE
- Joyce, James - A PORTRAIT OF THE ARTIST AS A YOUNG MAN
- Joyce, James - DUBLINERS
- Joyce, James - ULYSSES
- Kingsley, Charles - THE WATER-BABIES
- Kipling, Rudyard - CAPTAINS COURAGEOUS
- Kipling, Rudyard - INDIAN TALES
- Kipling, Rudyard - JUST SO STORIES
- Kipling, Rudyard - KIM
- Kipling, Rudyard - THE JUNGLE BOOK
- Kipling, Rudyard - THE MAN WHO WOULD BE KING
- Kipling, Rudyard - THE SECOND JUNGLE BOOK
- Lawrence, D. H - THE RAINBOW
- Lawrence, D. H - THE WHITE PEACOCK
- Lawrence, D. H - TWILIGHT IN ITALY
- Lawrence, D. H. - SONS AND LOVERS
- Lawrence, D. H. - WOMEN IN LOVE
- Lear, Edward - BOOK OF NONSENSE
- Lear, Edward - LAUGHABLE LYRICS
- Lear, Edward - MORE NONSENSE
- Lear, Edward - NONSENSE SONG
- London, Jack - MARTIN EDEN
- London, Jack - THE CALL OF THE WILD
- London, Jack - WHITE FANG
- Malthus, Thomas - PRINCIPLE OF POPULATION
- Marryat, Captain - THE CHILDREN OF THE NEW FOREST
- Marx, Karl - THE COMMUNIST MANIFESTO
- Mary, Charles and - TALES FROM SHAKESPEARE
- Melville, Hermann - MOBY DICK
- Melville, Hermann - TYPEE
- Mrs. Beeton - THE BOOK OF HOUSEHOLD MANAGEMENT
- Nesbit, E. - FIVE CHILDREN AND IT
- Nesbit, E. - THE PHOENIX AND THE CARPET
- Nesbit, E. - THE RAILWAY CHILDREN
- Nesbit, E. - THE STORY OF THE AMULET
- Pascal, Blaise - PENSEES
- Pellico, Silvio - LE MIE PRIGIONI
- Poe, Edgar A. - THE FALL OF THE HOUSE OF USHER
- Richardson, Samuel - PAMELA
- Rider Haggard, H. - ALLAN QUATERMAIN
- Rider Haggard, H. - KING SOLOMON'S MINES
- Schopenhauer, Arthur - THE ART OF CONTROVERSY
- Scott, Walter - IVANHOE
- Scott, Walter - QUENTIN DURWARD
- Scott, Walter - ROB ROY
- Scott, Walter - THE BRIDE OF LAMMERMOOR
- Scott, Walter - WAVERLEY
- Sewell, Anna - BLACK BEAUTY
- Shelley, Mary - FRANKENSTEIN
- Sheridan, Richard B. - THE SCHOOL FOR SCANDAL
- Sienkiewicz, Henryk - QUO VADIS
- Sterne, Laurence - A SENTIMENTAL JOURNEY
- Sterne, Laurence - TRISTRAM SHANDY
- Stevenson, Robert Louis - KIDNAPPED
- Stevenson, Robert Louis - THE BLACK ARROW
- Stevenson, Robert Louis - THE MASTER OF BALLANTRAE
- Stevenson, Robert Louis - THE STRANGE CASE OF DR. JEKYLL AND MR. HYDE
- Stevenson, Robert Louis - TREASURE ISLAND
- Stoker, Bram - DRACULA
- Strindberg, August - LUCKY PEHR
- Strindberg, August - MASTER OLOF
- Strindberg, August - THE RED ROOM
- Strindberg, August - THE ROAD TO DAMASCUS
- Strindberg, August - THERE ARE CRIMES AND CRIMES
- Swift, Jonathan - A MODEST PROPOSAL
- Swift, Jonathan - A TALE OF A TUB
- Swift, Jonathan - GULLIVER'S TRAVELS
- Thackeray, William - BARRY LYNDON
- Thackeray, William - VANITY FAIR
- Tolstoi, Lev - WAR AND PEACE
- Tolstoy, Leo - ANNA KARENINA
- Tolstoy, Leo - WAR AND PEACE
- Trollope, Anthony - BARCHESTER TOWERS
- Trollope, Anthony - THE WARDEN
- Twain, Mark - THE ADVENTURES OF HUCKLEBERRY FINN
- Twain, Mark - THE ADVENTURES OF TOM SAWYER
- Twain, Mark - THE PRINCE AND THE PAUPER
- Verne, Jules - 20000 LEAGUES UNDER THE SEAS
- Verne, Jules - A JOURNEY TO THE CENTRE OF THE EARTH
- Verne, Jules - ALL AROUND THE MOON
- Verne, Jules - AROUND THE WORLD IN 80 DAYS
- Verne, Jules - FIVE WEEKS IN A BALLOON
- Verne, Jules - MICHAEL STROGOFF
- Verne, Jules - THE MYSTERIOUS ISLAND
- Wallace, Edgar - SANDERS OF THE RIVER
- Wallace, Edgar - THE DAFFODIL MYSTERY
- Wallace, Lew - BEN HUR
- Wells, H. G. - KIPPS
- Wells, H. G. - THE INVISIBLE MAN
- Wells, H. G. - THE WAR OF THE WORLDS
- Wilde, Oscar - A WOMAN OF NO IMPORTANCE
- Wilde, Oscar - AN IDEAL HUSBAND
- Wilde, Oscar - DE PROFUNDIS
- Wilde, Oscar - LADY WINDERMERE'S FAN
- Wilde, Oscar - THE CANTERVILLE GHOST
- Wilde, Oscar - THE HAPPY PRINCE AND OTHER TALES
- Wilde, Oscar - THE IMPORTANCE OF BEING EARNEST
- Wilde, Oscar - THE PICTURE OF DORIAN GREY
- Woolf, Virgina - THE VOYAGE OUT
- Woolf, Virgina - NIGHT AND DAY
- Woolf, Virginia - LA STANZA DI JACOB
- Woolf, Virginia - MONDAY OR TUESDAY
- Yeats, William Butler - THE COUNTESS CATHLEEN
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<<< - >>> in works on natural history. And I look at varieties which are in any
degree more distinct and permanent, as steps toward more strongly marked
and permanent varieties; and at the latter, as leading to sub-species,
and then to species. The passage from one stage of difference to another
may, in many cases, be the simple result of the nature of the organism
and of the different physical conditions to which it has long been
exposed; but with respect to the more important and adaptive characters,
the passage from one stage of difference to another may be safely
attributed to the cumulative action of natural selection, hereafter
to be explained, and to the effects of the increased use or disuse
of parts. A well-marked variety may therefore be called an incipient
species; but whether this belief is justifiable must be judged by the
weight of the various facts and considerations to be given throughout
this work.
It need not be supposed that all varieties or incipient species attain
the rank of species. They may become extinct, or they may endure as
varieties for very long periods, as has been shown to be the case by Mr.
Wollaston with the varieties of certain fossil land-shells in Madeira,
and with plants by Gaston de Saporta. If a variety were to flourish so
as to exceed in numbers the parent species, it would then rank as the
species, and the species as the variety; or it might come to supplant
and exterminate the parent species; or both might co-exist, and both
rank as independent species. But we shall hereafter return to this
subject.
From these remarks it will be seen that I look at the term species
as one arbitrarily given, for the sake of convenience, to a set
of individuals closely resembling each other, and that it does not
essentially differ from the term variety, which is given to less
distinct and more fluctuating forms. The term variety, again,
in comparison with mere individual differences, is also applied
arbitrarily, for convenience sake.
WIDE-RANGING, MUCH DIFFUSED, AND COMMON SPECIES VARY MOST.
Guided by theoretical considerations, I thought that some interesting
results might be obtained in regard to the nature and relations of the
species which vary most, by tabulating all the varieties in several
well-worked floras. At first this seemed a simple task; but Mr. H.C.
Watson, to whom I am much indebted for valuable advice and assistance
on this subject, soon convinced me that there were many difficulties, as
did subsequently Dr. Hooker, even in stronger terms. I shall reserve for
a future work the discussion of these difficulties, and the tables of
the proportional numbers of the varying species. Dr. Hooker permits me
to add that after having carefully read my manuscript, and examined
the tables, he thinks that the following statements are fairly well
established. The whole subject, however, treated as it necessarily here
is with much brevity, is rather perplexing, and allusions cannot be
avoided to the "struggle for existence," "divergence of character," and
<<< - >>>
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