NOMENCLATURE.--(_A_) pommel; (_B_) cantle; (_C_) side-bar; (_D_) quarter-straps, front, spider; (_E_) quarter-straps, rear, spider; (_F_) quarter-strap ring or spider-ring; (_G_) cincha; (_H_) cincha-strap; (_I_) cincha-ring; (_K_) stirrup-loop; (_L_) stirrup-strap; (_M_) stirrup-tread; (_N_) stirrup hood; (_P_) rings; (_R_) cantle-staple; (_S_) saddle-bag stud; (_aa_) (_bb_) coat-straps or thongs; (_ii_) cincha-ring safes. [Illustration: FIG. 67.] The regulation McClellan saddle, with saddle bags (_b_), Fig. 68, is used. Some batteries are supplied with fair-leather seats which are to be preferred to black leather ones. Leather-covered wooden stirrups for officers; enlisted men use brass stirrups. Saddles of horses in harness have a pommel-ring to which the collar-strap (_v_) is hooked; and saddles of wheel-horses have, securely fastened to them, cantle-hooks (_k_), which serve to hold the single-trees (_i_) when detached from the double-tree. These hooks can be removed and attached to another saddle, if necessary, in the field. A loop is placed on the hair cincha to support the martingale (_n_). There are three sizes of cinchas, viz., 16-inch, 18-inch, and 20-inch. [Illustration: FIG. 68.] =The Draught-harness.=--This consists of the locking-collar (_c_), with hames permanently attached. The trace-tugs (_d_), permanently attached on either side of the collar, terminate in a ring (_e_), through which the toggle (_f_) of the trace passes. The trace (_g_) is made of two thicknesses of leather and has a D ring at either end to which chains are attached. The front chain (_f_) is short with a toggle at the end. The rear chain (_h_) is 24 inches long with a hook at the end; each link has a depression in it over which the hook can pass. Mogul springs (_l_) are used on the trace-chains of wheel-horses. The trace-chains (_y_) of lead-horses terminate in a ring which passes over the toggle of the trace in rear; the hook-end is then passed through the ring at the end of the trace and hooked in any link of the chain. =The Breeching.=--In this connection it should be stated that the neck-yoke (_o_) is attached to the wheel-horse by means of a breast-strap (_r_) which passes through the ring on the neck-yoke and hooks on either side of the collar to a ring. The breeching consists of a broad breech-strap (_m_), supported by hip-straps (_s_, _s′_), with rings at either end; a back-strap (_t_), with crupper (_t′_) attached, hooks to the saddle, and also has a loin-strap (_u_) for supporting the traces.