http://www.100megsfree4.com/farshores/wmtesla.htm
this is a translation of the proclaimed lost manuscript.
the web author makes note that many things may not be translated correctly.
its a very interesting read and may be of some value to us all.
contact info is available at the bottom of the page.
This document is not authentic. One of the biggest give aways is how he describes a "strong" ether. If you check the Dynamic Theory of Gravity pdf where Tesla's ether concept is described, you will see what I mean. Tesla's ether concept is often misinterpreted, and this is where the errors are.
Regards