"The Gods of Mars", by Edgar Rice Burroughs (1913)

 Rank  Occurances  Percentage    2-tuple
       (of 78648)
   1       1035    1.3159902%    of the
   2        375    0.4768081%    to the
   3        348    0.4424779%    in the
   4        273    0.3471163%    from the
   5        188    0.2390398%    that i
   6        188    0.2390398%    i had
   7        184    0.2339538%    and the
   8        183    0.2326823%    upon the
   9        174    0.2212389%    it was
  10        171    0.2174245%    at the
  11        142    0.1805513%    for the
  12        134    0.1703794%    as i
  13        133    0.1691079%    of a
  14        131    0.1665649%    with the
  15        128    0.1627505%    i was
  16        125    0.1589360%    the first
  17        118    0.1500356%    tars tarkas
  18        116    0.1474926%    i could
  19        111    0.1411352%    of my
  20        102    0.1296918%    and i
  21         96    0.1220629%    had been
  22         93    0.1182484%    john carter
  23         93    0.1182484%    into the
  24         92    0.1169769%    toward the
  25         92    0.1169769%    to me
  26         91    0.1157054%    we were
  27         91    0.1157054%    it is
  28         91    0.1157054%    and then
  29         89    0.1131624%    with a
  30         89    0.1131624%    that the
  31         86    0.1093480%    zat arras
  32         86    0.1093480%    for a
  33         83    0.1055335%    the great
  34         83    0.1055335%    of his
  35         83    0.1055335%    of helium
  36         82    0.1042620%    to be
  37         81    0.1029905%    of issus
  38         81    0.1029905%    dejah thoris
  39         78    0.0991761%    through the
  40         78    0.0991761%    by the
  41         77    0.0979046%    to my
  42         77    0.0979046%    on the
  43         77    0.0979046%    i have
  44         75    0.0953616%    in a
  45         74    0.0940901%    the temple
  46         74    0.0940901%    first born
  47         74    0.0940901%    as the
  48         70    0.0890042%    one of
  49         67    0.0851897%    the therns
  50         64    0.0813752%    of our
  51         64    0.0813752%    could not
  52         63    0.0801038%    there was
  53         63    0.0801038%    did not
  54         62    0.0788323%    which i
  55         62    0.0788323%    i saw
  56         61    0.0775608%    we had
  57         60    0.0762893%    of barsoom
  58         60    0.0762893%    have been
  59         59    0.0750178%    and as
  60         57    0.0724748%    they were
  61         57    0.0724748%    the black
  62         57    0.0724748%    of their
  63         57    0.0724748%    me to
  64         57    0.0724748%    as we
  65         56    0.0712033%    was a
  66         56    0.0712033%    that we
  67         56    0.0712033%    that it
  68         56    0.0712033%    a moment
  69         55    0.0699318%    to a
  70         54    0.0686604%    the same
  71         54    0.0686604%    me and
  72         52    0.0661174%    within the
  73         52    0.0661174%    of this
  74         52    0.0661174%    i am
  75         52    0.0661174%    a great
  76         51    0.0648459%    kantos kan
  77         50    0.0635744%    would be
  78         50    0.0635744%    that he
  79         49    0.0623029%    the chamber
  80         47    0.0597599%    i asked
  81         46    0.0584885%    the outer
  82         46    0.0584885%    as he
  83         46    0.0584885%    and so
  84         45    0.0572170%    the valley
  85         45    0.0572170%    i knew
  86         44    0.0559455%    that you
  87         44    0.0559455%    that they
  88         44    0.0559455%    of them
  89         44    0.0559455%    of her
  90         44    0.0559455%    i said
  91         44    0.0559455%    he said
  92         44    0.0559455%    he had
  93         44    0.0559455%    and in
  94         43    0.0546740%    was the
  95         43    0.0546740%    but a
  96         43    0.0546740%    beneath the
  97         43    0.0546740%    as they
  98         43    0.0546740%    and with
  99         42    0.0534025%    there is
 100         42    0.0534025%    the ground