The arrow shows the direction of progress: the turn is the cusp in the middle between the two curves. Thus if the first edge is outside forward, the second is inside back: if the first is inside forward the second is outside back: if the first is outside back the second is inside forward: if the first is inside back the second is outside forward.
II. The second group of turns is known as rocking turns, or more generally as “rockers.” Like the “three” turns, they are all of the same shape, thus:
and are four in number, namely:
| (i) | Outside forward to outside back. |
| (ii) | Inside forward to inside back. |
| (iii) | Outside back to outside forward. |
| (iv) | Inside back to inside forward. |
Now, in both these groups the body revolves or rotates at the moment of making the turn in the direction indicated by the dotted lines; it revolves, that is to say, outside the direction of the first curve. But it is possible for the body to revolve in the opposite direction, that is to say, inside the direction of its first curve. This makes possible the third and fourth groups of turns.
III. This group, which is known as brackets, from the mark left on the ice, corresponds to Group I, and the edges employed in it are the same, namely, outside forward to inside back, &c. But in this group the body revolves on the inside of the direction of the first curve, and the mark on the ice, consequently, is as follows, the dotted line again indicating the revolution of the body:
IV. The fourth group is known as counter-rocking turns, or more generally as counters. It corresponds with Group II, for the marks on the ice are approximately the same, and the edges employed are outside forward to outside back, &c. But here again the revolution of the body, as in the brackets, takes inside the direction of the first curve, thus: