217 



Si MPTOMS. 



The most common sites of mange are the root of the tail and 

 neck especially the former. The psoroptic form may spread all over 

 the body if treatment is neglected, but usually it does not. Tie 

 biting of the parasites gives rise to an itchy condition of the skin, 

 which causes the animal to rub itself against fixed objects, with the 

 result that the hair over the effected part gets rubbed off. On examining 

 the skin a considerable amount of scurf may be seen. Red and yellow 

 blood scabs appear on the surface, and there may even be abrasions 

 if the animal has been rubbing against rough objects. If the psoroptic 

 form should spread over the body the patient may waste away and 

 become greatly reduced in condition. In cases of this kind, however. 

 it will often be found that the wasting is due to some serious internal 

 trouble such as tuberculosis, which reduces the animal's natural power 

 of resistance to the less serious disease. 



It has not infrequently been observed that cows appear to become 

 cured spontaneously when turned out to grass in the spring. This 

 usually means, however, that under open air conditions the parasites 

 do not increase at the same rate, hence the active symptoms are mere- 

 ly less marked. When the animals are again stabled in the autumn 

 the acari (parasites) which have persisted resume their activity, and 

 this sometimes leads to an erroneous belief lhat re-infection has taken 

 place. 



PREVENTION. 



(1.) The affected patches on the animal's skin should be softened 

 by washing with soap and warm water. After this has been done the 

 parts should be dressed with one of the common mange dressings, 

 such as spirit of tar, oil, and sulphur. The dressing should be applied 

 twice or even three times at intervals of ten days. For the serious 

 and rebellious cases above mentioned veterinary advice thould be 

 sought. 



(2.) The litter from an infected animal should be removed each 

 time after dressing, and the flooring and wood or other fittings should 

 be well sprayed with a five per cent, solution of carbolic acid in water. 

 — Leaflet No. 13, Board of Agriculture and Fisheries, 4. Whitehall 

 Place, London, S.W. April, 1905. 



719.-A WHITE BAT. 



During the month of July 1905, a large White Bat was seen by 

 several persons flitting about the Gardens near Government House. 

 Whether this is a true albino or only a form of one of the ordinary 

 types remains to be seen, but the occurrence is put on record as 

 somewhat unusual if not rare. 



720— TESTS FOR FARMERS' MILK. 



The following leaflet issued by the English Board of Agriculture 

 and Fisheries appears to be a move in the right direction as it affords 



