Earlier there was a thread re: the first edition of the second volume of the Edgars' Great Pyramid Passages (published in 1913):
http://www.jehovahs-witness.com/10/134273/1.ashx
In 1924, Morton Edgar published a substantially revised edition of the second volume. The main revisions had to do with re-interpreting the significance of 1914. The first edition in 1913 saw the years 1914/1915 as the final end. The second edition in 1924 adopted the line being publicized by the Bible Students at that time. 1914 was the beginning of the end, but the final end was still imminent. Interestingly, this 1924 edition of Great Pyramid Passages on page 151 publicizes Judge Rutherford's booklet Millions Now Living Will Never Die, which was being circulated by the Bible Students at that time. (Later reprints of this 1924 edition by various Bible Student groups usually remove the footnote to Rutherford's booklet. Edgar, at this time, was in association with Judge Rutherford's group.) The Millions booklet and campaign was expecting the return of the "Ancient Worthies" (like Abraham, Isaac and Jacob) in the year 1925 heralding the beginning of a new earthly society. More on the Millions campaign can be read in the newspaper clippings of that era. See:
http://www.theocraticlibrary.com/downloads/Millions_Campaign_News_Clippings.pdf
The Edgars' work was in the mainstream of the Bible Student movement and was supported by the Watchtower Society at the time. Morton Edgar wrote material that was published in The Golden Age and he also wrote defenses of the 70 year Babylonian captivity which were published in the Watch Tower magazine in the early 1920s. (This to counter the denial of the 70 year captivity which began to be promoted by the Pastoral Bible Institute, which had been founded by the 4 directors Rutherford had dismissed in 1917.) It was not until 1928 that Rutherford turned against the idea that measurements in the Great Pyramid had any connection to biblical chronology.
The PDF file of this 1924 edition of the second volume of Great Pyramid Passages can be downloaded from this filesharing site:
http://www.filesend.net/download.php?f=50cd53e03b1457176b50a2aa4a990e45