t. 



I'-IO IlOKSr, WAIUIWTY. 



Naviculiir N.VVK ILAK DlSKASK OK GR()(;GINKSS. — Tllis is 



-if^crip'tion anotlici' (liscaso afFocting the foot of the hoi*sc, and 

 is so called because it arises from an injury to the 

 navicular bone, a small bone in tlio foot of a horse 

 above the frog. Strictly speaking this disease 

 arises from inflammation of the s}niovial membrane, 

 M-hitli covers tlio navicular bone. A horse with 

 navicular disease is unquestionably unsound. The 

 symptoms mostly arc heat in the feet and lameness 

 at starting to walk, ^Wth low action and wearing 

 of the toe of foot. But the most remarkable 

 s^Tupton, perhaps, is pointing tlie toe — that is, the 

 horse puts out the foot diseased in front of the 

 other foot, and rests the leg on the heel. This is 

 a disease wliich does not sliow so much wlien a 

 horse has become .slightly warm from exercise, and 

 many a ■^^Tetched poster will come lame out of the 

 stable, and in a few miles, wann up to cora- 

 liaratively sound action. This disi^aso in a hoi-se 

 is called grogginess when it lias so far developed 

 as to cause tlie animal to knuckle over on the 

 pastern joint, and to stand with a tottering or 

 sliaking movement ; hence probably the term, 

 grogginess. 



It is said that a lior.se can be cured of this com- 

 jtlaint by severing the nerves of tlie foot, or what 

 is called '* nerving ;" luil although a horse, after 

 such an oj)eration, will do light work well eiiougli, 

 it will be sure to break down if ])ut to hard work, 

 and a nerved horse is ])y decision held to b(> an 



