From Columns. Dancers facing each other on a diagonal
(three pairs) step forward to join djacent forearms, turn
one-half (180 degrees) and step forward to finish in a
position vacated by the dancer who was originally
adjacent to them in the column. Meanwhile, the #1
dancer in each column Runs into the position vacated by
the adjacent #4 dancer who is doing the forearm turn.
When done from right-hand columns, the dancers facing
in turn by the right. When done from left-hand columns,
the dancers facing in turn by the left hand.