Xo. 4.] REPORT OF CATTLE BUREAU. 313 



with a small quantity of water, then the sulphur is added 

 and stirred in with sufficient water to make a paste ; 30 gal- 

 lons of water are added, and the mixture should then be 

 boiled for two hours ; after it has been boiled this length 

 of time, water sufficient to make 100 gallons is added ; it 

 should then stand until it becomes clear, and the clear fluid 

 on top should be drawn ofl', leaving all sediment at the 

 bottom of the vessel. 



The fluid should be used at a temperature of 105°, and 

 each sheep should be held in the dip for two minutes. If 

 necessary, this should be repeated in ten days. This is 

 found to be a very efficient sheep dip for killing the scab 

 parasite, and, furthermore, it has not been found to injure 

 the quality of the wool. The objection to it seemed to be 

 that when prepared by inexperienced persons the hands 

 were blistered by the mixture of quicklime and sulphur ; 

 and for this reason, in the instances mentioned above, it 

 was found necessarj^ later to furnish the owners with a pro- 

 prietary preparation known as " McDougall's sheep dip," 

 which seems to answer the purpose equally well, and with 

 no danger of disagreeable consequences to the users. 



ACTIXOMYCOSIS. 



Actinomycosis, or "lumpy jaw," as it is called when the 

 disease invades the jaw bone of an animal, is caused by a 

 small fungus known as actinomyces. Several cases are 

 reported to the Cattle Bureau every year, but during 1904 

 a few more than usual have been sent in. 



Early in the year a cow was killed in Plymouth because 

 of tuberculosis. The udder was also nodulated. The speci- 

 men examined by Dr. Frothingham proved the lesions to be 

 due to actinomyces. A curious coincidence occurred in the 

 same town a little later. A specimen of the mammary 

 gland of a sow which was killed for food was sent to the 

 Cattle Bureau office by the inspector of animals, the in- 

 spector asking whether the sow had tuberculosis, and 

 whether the meat ought to be condemned or not. When 

 this specimen was examined mi('rosco})ically, the lesions 

 were found to be due to actinomyces. 



