This movement is named after Mr. Bowman and Mr. W. Ewing of the U.K. It is an extension of the 1½ table Mitchell to a Mitchell with two appendix tables rather than 1. It has the advantage over previous appendix movements of not needing a prime number of tables in the base.
After setting up the base movement, with two tables less than the total number, the first appendix table (with a table number two more than the highest table in the base), is placed so as to share boards with the highest numbered table in the base. The other appendix table (with a number one more than the highest table in the base) shares boards with the second highest table in the base for the first round and then sharing two tables further down at each change. For example on a 5 table base, table 7 shares with 5 throughout and table 6 shares first with 4 then 2, 5, 3, 1. On a 6-table base, table 7 shares with 5, 3, 1, 5, 3, 1 and 8 with 6 throughout. Note the repeated share tables with an even base, and the three-way share in one round with the odd base.
As with the 1½ table Appendix Mitchell the pair movement for E-W is a pure Mitchell, moving up one table at each change; 5, 6, 7, 1, 2 etc. for a 5 table base movement. The only problem with this movement is the positioning of the second highest table to minimise the problem of the roving share. The boards move down one table at a time but always remain in the base.
