From Parallel Columns.

The First n dancers (where n corresponds to the given fraction. E.g., from Parallel Columns of 4, n=1 for 1/4; 2 for 1/2; 3 for 3/4; 4 for full), as a Tandem unit of n, Peel Off to end in Concentric Columns of n as the Trailing dancers move forward (using Circulates) to form a compact formation.

From Parallel Columns of 4:   before Invert The Column         after 1/4   after 1/2   after 3/4   (done)

From Parallel Columns of 3:   before Invert The Column       after 1/3   after 2/3   (done)

Note: Upon completion of a full Invert The Column, dancers slide together to end in adjacent Columns. Do not slide together if the call is fractionalized (e.g., 3/4 Invert The Column ends in an "H").

Continue To Invert Another fraction [C4]: From one of the intermediate stages of Invert The Column. Do the next fraction parts of Invert The Column.

Variation:Magic Invert The Column (fraction) [C2V].

Magic Invert The Column:   before Magic Invert The Column         after 1/4   after 1/2   after 3/4   (done)

Although I have never heard anyone call a (full) Magic Invert The Column, I believe that it should end in normal Columns, not Magic Columns. This is because of the Magic rule that says that after you leave the Magic Column Circulate path, the remainder of the call is finished normally.

See also Cross Invert The Column (fraction) [C2].