In a second task, animals sat before a square tray and looked for a piece of food set in any one of the four corners.
There are also square trays ($50 to $65) that can be used to protect furniture from water marks left by, say, a vase of flowers or bottle of Champagne.
Seiro soba come on a square lacquered tray, the beige noodles arrayed across a bamboo mat.
Up front, square wooden trays contain rows of bulbs that are plugged into fixtures so customers can flick them on and off.
A stainless-steel table stood in the middle with four square transparent trays set on it.
In front of it was a square tray, full of earth.
She walked sinuously over to a table with a square Chinese tray on it.
When he returned to the white breakfast table, he carried a shallow square black tray with a number of tiny controls arranged along one side.
Kemo came in with Gerard's whiskey on a square black-lacquered tray.
Jopin returned shortly with a pitcher of water, a pitcher of beer, a great slice of beef, and half a loaf of bread upon a square wooden tray.