This is how a page is supposed to appear in a Google Books PDF:
I’ve encountered an entire run of a magazine where every page with an illustration looks like this:
That is actually the next page from the same magazine!
Also, the entire run of this magazine, that spans at least a decade, is misclassified, with the wrong title, the wrong cover icon, and some are set to No Preview or Snippet View despite all being from well before 1927 and therefore in the public domain.
You might like this, not apropos Google Books (on which I have given up) but apropos the steamer trip to the Scillies:
http://richardherley.blogspot.co.uk/2009/05/nausea.html
:-)