24,751. Lake, H. H., [Stirling Co.] Nov. 11. Superheaters, steam.-As typically shown in connection with a water-tube boiler of the Stirling type, the invention consists in having connected superheaters 18, 19 of the Niclausse construction on opposite sides of the inner baffle 16, at the top of which a damper 41 is provided. A pipe 20 leads the steam from the middle drum 2 to the rear superheater which may be double, as shown ; thence it is conveyed by a pipe 21 to the front superheater. A depending baffle 43 is placed behind the rear superheaters.