User:William Ellison
Appearance
I write mainly in the french edition of Wikipedia.
You can contact me (in English or French !) via my home page William Ellison
Sand-box 1 (Calabri triangle)
Sand-box 2 (Boteler grammar school)
Sand-box 3 (Projective geometry)
Sand-box 4 (Essays de Montaigne (The Bordeaux copy)