ECZEMA. 



511 



seen it in coach horses, in gentlemen's road horses, and in race- 

 horses, and not in any instance could the disease be associated with 

 neglect or dirt as a cause. When treated early there is a chance of 

 cure, therefore these cases should be cared for as soon as possible. 

 Dress the parts with green soap and allow it to remain for twelve 

 or eighteen hours, then wash thoroughly, dry carefully, and anoint 

 with aramoniated mercury ointment (unguentum hydrargyri ara- 

 moniati). The oleate of mercury ointment, 10 per cent., is an 

 excellent preparation for the treatment of this disease, as is also 

 the iodide of sulphur ointment, as advised for eczema in dogs (see 

 page 503), to which should be added two or three grains of cor- 

 rosive sublimate to the ounce. — w. L. z.] 



4. Eczema of the Flexion Surfaces of the Inferior 

 Articulations of the Legs. {Salanders and Malanders: 

 Grease). 



The localization of eczema on the flexion surfaces of the extremi- 

 ties has for a long time been designated by special names. The most 

 important is that upon the pasterns, and this, in opposition to the 

 exanthema of horse-pox and dirty grease (Schmutzmauke), is also 

 designated under the name of creviced grease. Eczema of the knee- 

 folds and of the hock (malanders and salanders) is rare in propor- 

 tion to the preceding; these articulations are more distant from the 

 soil, to the irritating influences of which they are consequently less 

 exposed. It habitually assumes a squamous form. 



Etiology. The flexion surfaces of the inferior articulations of 

 the legs are predisposed to œdematous infiltration, because the skin- 

 is the seat of a continual displacement or wrinkling of these sur- 

 faces, a circumstance to which is added the irritating action of dust, 

 mud, dampness, and cold. These etiological influences explain 

 why grease is more frequent in winter than in summer, and also 

 more upon the hind legs than on the forelegs. 



During the cold season Prietsch has several times observed 

 numerous examples of this disease on street-car horses which had 

 been used on highways where salt had been thrown. Siedam- 

 grotzky. Born, and Jelkmann have not been able to establish the 

 injurious action of this agent by experimentation. 



In common horses clipping of the legs sometimes becomes an 

 indirect cause of this eczema by exposing the skin to the action of 

 dampness and cold. 



