Abstract: An educational game requiring skills in both language and scoring ability involving correlating certain zones on a playing surface with scoring opportunities. A game board is formed from moldable material having first and second marginal borders provided with a plurality of pockets adapted to receive therewithin letter tiles having diverse colors on opposed sides correlatable to letters of the alphabet printed as indicia on the game board itself. Inwardly disposed therefrom is a four-sided frame having pairs of spaced opposed parallel vertical and horizontal legs defining a rectangular frame provided with numerical and alphabetical correlatives oriented to assist in deployment of a plurality of segments within the frame. Immediately within the frame itself a plurality of segments formed by N.times.N arrays define a peripheral playing surface within which a central major playing segment is disposed having a 3N.times.3N array.

Abstract: This invention provides a furnace system for and method of melting metal charges which utilizes hot gases generated by a burner, and are ordinarily discharged from the furnace as waste, for the dual purpose of preheating metal to be subsequently melted and preheating combustion air which is used to provide more efficient operation of the furnace burner.