NOVELTY - A composting apparatus comprises a frame, a cylindrical drum (22); a supporting base (10); opening for admitting air into the drum; a shaft disposed axially of the drum; fins secured inside the drum; an opening in a sidewall of the drum; a door panel (30) secured by securing element to sidewall for opening and closing the opening in drum; and blocks (20) to rotate the drum about the shaft. The securing elements includes a pair of slots in which the door is able to slide to open and close the opening in the sidewall of the drum.    USE - As composting apparatus for composting materials.    ADVANTAGE - For the composting apparatus, the drum can be rotated with the door partially or fully open so that the composted material can be more easily removed from the drum. The composting apparatus is provided with the ventilation opening that supplies sufficient air into the composting material to aid in composting of the material. The door can be positioned to form a variable size opening, from a small opening, on up to a full opening, and hold its position, even while the drum rotates. The apparatus removes the compost material without any compost falling onto the ground. The apparatus provides improved composting of the compost mixture with air supplied by end apertures. This aeration and mixing of composting assists in the composting operation.    DETAILED DESCRIPTION - A composting apparatus comprises a frame, a cylindrical drum (22) having closed ends (24, 26) and a cylindrical sidewall for holding material to be composted; a supporting base (10) for supporting the cylindrical drum on the frame; opening for admitting air into the drum; a shaft disposed axially of the drum, and is secured to at least one of the closed ends of the drum and mounted to the frame, so that the shaft and the drum are mounted for rotation with respect to the frame; fins secured inside the drum; an opening in a sidewall of the drum; a door panel (30) secured by securing element to the sidewall of the drum for opening and closing the opening in the drum; and blocks (20) to rotate the drum about the shaft. The securing elements includes a pair of slots in which the door is able to slide to open and close the opening in the sidewall of the drum. The slots are formed by fastening angle iron to the outer surface of the drum, and in an opposing relationship strips are fastened to the inner surface of the drum in position so that the slots are formed between the angle iron and the strips. The opening for admitting air into the drum includes the partially hollow shaft; a swivel fitting through which air can be pumped into the hollow portion of the shaft; and at least one pipe having holes and connected to hollow portion of the shaft so that air pumped into the hollow portion of the shaft is directed to the pipes and into the composting material. The element to rotate the drum about the shaft includes a drive sprocket secured to one end of the drum coaxial with the axis of the drum; an electric motor that drives a driven sprocket positioned relative to the drive sprocket; a sprocket chain connecting the drive sprocket and the motor driven sprocket for rotating the drum; and controller having timer for controlling the motor so that the motor rotates the drum.    DESCRIPTION OF DRAWING(S) - The figure shows a front view of the composting apparatus.    Supporting base (10)    Blocks (20)    Cylindrical drum (22)    Closed ends of drum (24)    Door panel (30)    Sprocket (44)    Motor. (45)