This book was published in 1846 by a Waldensian pastor name Antoine Monastier. It is one of the best and most interesting books on the Vaudois or Waldenses. It begins with the possible conversion of the Waldenses by the Apostle Barnabas and continues down to the 1840s.
In editing this book I discovered that most English copies are greatly abridged. They comment that the items left out only concern the Waldenses. Yet, if your intention is to understand the Waldenses those items are easily as important as any other part. So, I found a Google scan that was complete and retyped the missing sections (which amounted to about 80 pages) back into the book. It is still missing some of the Appendix. However, those were in the patois of the Waldenses or in latin so they would not have been helpful to most of us.
The PDF version above is the scan of the complete book but also without some of the Appendix’s.