The handsomest way of ornamenting the edge of a pie or pudding is to cut the rim in large square notches, and then fold over Triangularly one corner of every notch.
"Seventy-Five Receipts for Pastry Cakes, and Sweetmeats"
Miss Leslie
One of them is a small, Triangularly formed, dark brown seed, which you may recognize."
"The Wonder Island Boys: Exploring the Island"
Roger Thompson Finlay
Some stones are placed about in the form of seats, and one can easily see where there has once been a fire from the sign or circumstance of three stones being placed Triangularly, leaving a small space between them for the fire.
"Travels in the Great Desert of Sahara, in the Years of 1845 and 1846"
James Richardson