I OMITTED any reference to Leslie in my review of Mr. Blater's table (NATURE, vol. xl. p. 573), as I have never supposed that he was an independent discoverer of the method, or an independent ...

MAY I point out, by way of note to Mr. Glaisher's article (October 10, p. 573) on the method of quarter-squares, that the method is indicated in the second edition of Sir John Leslie's “Philosophy of ...

Learn to make no-hassle ¼-square and modified ¼-square triangles, cutting only squares. Make ¼-square and ½-square triangles without cutting a single triangle! Learn to make ¼-square triangles and ...