That also true for the long s (ſ) http://en.wikipedia.org/wiki/Long_s http://en.wikipedia.org/wiki/Long_s -- it's only used at the start or in the middle of wo

That also true for the long s (ſ) http://en.wikipedia.org/wiki/Long_s http://en.wikipedia.org/wiki/Long_s -- it's only used at the start or in the middle of words. The same is true for sigma, σ is used in the start and middle of words, while ς is used in the end of words.