We have noticed a great many broken links for Google books. When we have tried to locate the books we have noticed an error message that the books is not on the server. Appears that Google have either changed the location of many of their books or, for reasons known only to Google, removed them altogether.
We shall try our utmost to restore the links where the works still exist, but since this is affecting 1 in 4 Google books it is going to be a time consuming exercise.
If our readers are so inclined they can assist us by reporting any broken links and also reporting the links to moved works when they come across them. The reason we are asking for such help is that we have encountered a problem in our search for some of these works in that the Google Books search engine kicks us out treating our searches as spam bots!
Please bear with us while we try to rectify matters.