Abstract: An auditorium-chair and portable-writing-table combination in which a portable writing table having a writing surface on its upper side, has downwardly-opening U-shaped channels on its underside that are received on the respective arm rests on each side of the seat, one channel being laterally and angularly displaceable with respect to the board to accommodate variations in the spacing and the angular relationship of a pair of arm rests. The other channel is fixed against lateral and angular displacement to render the mounted table stable against lateral displacement. The laterally displaceable channel is formed with transverse slots in its bite portion that loosely receive the headed studs secured to the table.