I have been doing exactly that for some time, but there will come a point where Google obstinately refuses to provide anything new.

Sometimes this is due to end of a page, but other times, if you can GUESS a word or phrase which is on the page, you will get a new selection!

Not really relevant to this example, but in the genealogy book, you can sometimes put in the name of a known relative to get more information.

(Unfortunately, my Google Books access has just been blocked here, though)