THE GENUS DEMODEX. 5 



01. Carvi (Carui) 10 grammes, Alcohol 10 grammes, 01. Eicini 

 150 grammes. A little of this lotion is applied on the tip of a finger 

 and rubbed in carefully but thoroughly. Each diseased place should 

 be rubbed with the lotion for at least three minutes so that the etherial 

 oil can penetrate deeply into the skin. The lotion should be applied 

 once a day, and a bath in the |-1 per cent, solution of Potassium 

 Sulphide should also be given once a week. After the sulphur bath it 

 is as well to discontinue treatment for a day or two in order to allay 

 any irritation of the skin. The length of the treatment varies according 

 to the nature and extent of the lesions. Cases in which the affected 

 areas are not very large can be cured by a few weeks' treatment, but 

 it is often necessary to devote much care and time to cases before a 

 cure is effected. 



As pointed out above, follicular mange is due to a Staphylococcus 

 bacterium introduced by the mites and, in addition to the acaricidal 

 treatment, vaccine treatment should also be given. Mattam cured a 

 case of follicular mange by vaccine treatment alone, but this method is 

 not always successful (see Smythe's paper). 



The following preparations have also been used with a certain 

 amount of success: 1. Potassium Sulphide and Cantharides Pomade. 

 The dog is shaved and given a sulphur bath (500 grammes of Potassium 

 Sulphide to 100 litres of water). Then the body is rubbed with an 

 ointment of CaT\tharides Pomade (1 part Cantharides Ointment, 

 6 parts Hogs' lard), a third part of the body being treated each day, 

 so that the process is complete in three days. On the fifth or sixth day 

 the dog is well washed, and after several days another sulphur bath is 

 given and the ointment applied as before, the treatment being con- 

 tinued in this manner until the cure is effected. As there is danger of 

 irritating the eyes, the skin surrounding them should only be rubbed 

 Avith Balsam of Peru (diluted by the addition of four parts alcohol). 

 2. Carbon Bisulphide. The hair is cut short and the diseased parts 

 dabbed with cotton wool impregnated with carbon bisulphide (the 

 inflammable nature of the solution should be borne in mind). As soon 

 as the surface is dry a paste composed of Formol 1-3, vaseline 50, oxide 

 of zinc 25, starch 25, should be applied. If the skin is very thick, 

 flowers of sulphur should be mixed with the carbon bisulphide and 

 neutral soap powder in the respective proportions of 7, 1, and 2. 

 Treatment should be renewed at intervals of three or four days until 

 a successful result is obtained. 3. Formalin solution (2-3 in 100). 

 One or more applications every day. 4. Benzine Ointment (1 part 



