TABLE OF DIMENSIONS.
| Length of Collar. | Width 1/3 Down from Top. | Width at Widest Part. | |
| No. | Inches. | Inches. | Inches. |
| 1 | 16½ | 5⅝ | 7½ |
| 2 | 18 | 5¾ | 8 |
| 4 | 19½ | 6 | 8⅜ |
| 5 | 21 | 7½ | 9¼ |
| 6 | 22½ | 7½ | 9¼ |
| 7 | 24 | 8 | 10 |
The width is changed at the top by using the different pads and connections. Each pad has its own connection, which forms the hinge at the top of the collar.
The collar is taken in at the bottom by shifting the bolt that holds the buckle in the side having the three holes. Each pad, connection, and collar-side has the number denoting its size stamped upon it. Any reference to the collar-side hereafter will mean collar-side and extension put together, which form the collar-side complete.
When it is necessary to put a No. 3 pad, the largest size, in the top of the collar, and adjust the bottom to the middle or smallest size, the collar-sides will have to be bent at the top under the eye enough to allow the collar to close easily at the bottom, and when the reverse is wanted the collar-sides can be straightened. In making these irregular changes be particular to get both sides of the collar the same length, so that it will close at the bottom. The sides can be easily twisted to make them come together evenly.
When it is necessary to bend the ends of the pads to make them fit closely to the collar-sides, use a wooden mallet. If a hammer is used, it will break the zinc on the galvanized parts.
THE ARTILLERY-WAGON HARNESS.
The same as regular artillery harness, omitting the saddles and substituting a back-strap, and replacing the curb-reins and coupling-reins by a set of regular driving-reins.
A four-in-hand whip is also used with the harness.