Reappropriation of a scanning aftifact in Roman Jacobson's "Six Lectures of Sound and Meaning"

In 1978
Roman Jacobson
published a book titled
Six Lectures of Sound and Meaning

 In 2014
I've been reading a scan of it
and found a few blots on several pages.
Very interesting blots.
I've cropped'em and looped'em
And here's what i got: