The Tracts G, move round, and the Tracts M, retire round.
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In moving sideways, the Tract or Line must also be considered as to its two sides, viz. the upper side mark’d X, and the under side mark’d Y. Steps and half Positions, which are on the upper side of the Line, are to be made with the foremost Foot, and those which are on the under side, with the hinder Foot.
The Tracts mark’d N, are moving sideways to the right, towards the lower end of the Room.
The Tracts R, move round sideways to the right.
And the Tracts S, move round sideways to the left.
The manner of Steps crossing one another.
A
Step