[Some references to the story alluded to by our correspondent will be
found in Dr. Leyden's valuable introduction to _The Complaynt of
Scotland_; and the story itself in Chambers's admirable collection of
Scottish Folk Lore, _Popular Rhymes of Scotland_, p. 236. of the third
edition, which form vol. vii. of the _Select Writings of Robert
Chambers_.]
_Sides and Angles._--What is the most simple and least complicated method
of determining the various relations of the sides and angles of the acute
and obtuse-angled triangles, without the aid of trigonometry, construction,
or, in fact, by any method except arithmetic?