Article by Henry More on Revelation 13:18. This article is taken from a portion of a book published by Doctor Henry More in 1708 titled "The Theological Works of the Most Pious and Learned Henry More, DD"  of Cambridge University, England. Note that Doctor More points out that Sigma has a value of 200, not 6. Note in the article below, the letter "s" looked like an "f" in those days, unless it was a capital "S".