On the Origin of Species

words removed
156,958
marks left
22,297
words a sentence
28.3
most used mark
,

Its punctuation fingerprint: each mark's share, on the same scale as every book on the shelf.

Its punctuation twin, the closest fingerprint on the shelf: Considerations on Representative Government, John Stuart Mill. More twins

Charles Darwin on the shelf

4 books by Charles Darwin are on the shelf. Its fingerprint is the 4th closest of the 4 to their average. Held out and guessed from its marks alone, the shelf takes it for Arthur Schopenhauer. Of the 623 other authors on the shelf, Charles Darwin's punctuation is closest to Hilaire Belloc's.

Charles Darwin's average fingerprint

Charles Darwin on the numbers page

Marks per 1,000 words, except words per sentence and dialogue (the share of words inside quotation marks).
This bookCharles Darwin's averageEvery book's median
Semicolons10.811.57.2
Commas80.279.376.6
Colons2.62.31.6
Exclamation marks0.30.52.8
Question marks0.70.73.7
Words per sentence28.321.517.0
Dialogue1%6%22%

Every mark in reading order, left to right, top to bottom. Sentence endings are pink.

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