"As far as I am aware Smyth didn't apply his measurements to bible prophecy but he gave his approval to Russell to do so." - cofty
I believe that this is correct. However, there was another 'player' in the Great Pyramid/religious prophecy speculation game. He was also a Scotsman by the name of Robert Menzies. Russell credits him as the first one to attach a prophetic/spiritual meaning to the Great Pyramid. No doubt, Russell was influenced by this young mans writings and he mentions them in the chapter entitled The Great Pyramid contained in the book THY KINGDOM COME .:
"A few years after Prof. Smyth's return, came the suggestion that the Great Pyramid is Jehovah's "Witness", and that it is as important a witness to divine truth as to natural science. This was a new thought to Prof. Smyth, as well as to others. The suggestion came from a young Scotsman, Robert Menzies, who, when studying the scientific teachings of the Great Pyramid, discovered that prophetic and chronological teachings co-exist in it." - pg. 320 edition 1891
"In a letter to Prof.Smyth, Mr. Robert Menzies, the young Scotsman who first suggested the religious or Messianic feature of the Great Pyramid's teaching,..." - pg.337 edition 1891
Yes sparrowdown, Russell stole ideas from everyone as some sort of religious amalgamation project. Thanks to cofty for keeping this foolishness in the forefront so that new posters here can see the REAL roots and foundation of the Jehovah's Witness religion.