Efficiency

Level 4 of the Dungeon
(0, 0, D:4)
  a scroll of amnesia
(3, -3, D:4)
  15 poisoned darts
(5, -13, D:4)
  a jackal corpse
(13, -1, D:4)
  6 gold pieces
(17, -1, D:4)
  a cursed +0 great sword
(30, -8, D:4)
  a worker ant corpse
(34, -3, D:4)
  29 stones
(42, -1, D:4)
  8 stones
(50, -1, D:4)
  a worker ant corpse

Level 5 of the Dungeon
(0, 0, D:5)
  a +0 animal skin (still there?)
  a +0 animal skin (still there?)
(2, 7, D:5)
  a stone
(6, 6, D:5)
  a stone
(6, 7, D:5)
  a stone
(7, -7, D:5)
  3 stones
(8, -6, D:5)
  3 stones
(11, 16, D:5)
  2 arrows
(12, 18, D:5)
  2 arrows
  a stone
(13, 18, D:5)
  a worker ant corpse
(26, 27, D:5)
  a +0 ring mail
(34, 14, D:5)
  a +0 club
(48, 3, D:5)
  a +0 chain mail

Level 6 of the Dungeon
(0, 0, D:6)
  3 gold pieces