The depth of the bone can also be worked out, but that method was not covered in this class. Other shalya such as kaudi, coal or a buried furnace are also found by dowsing, and any shalya produces a vibration (spandan) in the body of the person checking.
Whether a bone is present can also be judged from a lagna chart cast for the moment of the question (prashna), or by asking a small girl to place her finger with her eyes closed; where she places it gives the answer. In the class case the rod turned anti-clockwise in the middle of the right-hand side of an industrial plot; digging there brought out a horizontal bone about one foot long at roughly 3 to 4 ft depth, and more bones were said to remain.