10 



fly. After further observation it seemed reasonable that the fly trans- 

 ported the tr}^anosome from the sores of infected animals to the 

 fresh cuts of clean animals. In pursuance of a rational mode of 

 prophylaxis based on this hypothesis, the following recommendations 

 were made in order to detect and isolate all infected animals : — The 

 isolation of all suspects in screened stables ; the diagnosis of infected 

 animals in the laboratory, by microscopic examination and animal 

 inoculation ; the sacrifice of all infected animals ; and the protection 

 of all non-infected animals by suitable dressings for their wounds. 

 Thirty-five infected animals were detected, and the precautionary 

 measures were at once carried out. The results were eminently 

 successful, for the disease has been stamped out in the corrals, and has 

 not reappeared in 2 years, although rife in nearly all the outlying 

 districts of the Republic of Panama. The author suggests that more 

 attention be paid to the possibility of the transmission of trypanosome 

 diseases by means of Musca domestica. 



Jarvis (E.). Trapping sheep-maggot filQS.-— Queensland Agric. Jl, 

 Brisbane, Aug. 1913, pp. 105-107. 



One of the many remedies suggested for this notorious sheep pes 

 is that of trapping the adult fly. American entomologists have found 

 the plan very successful in controlling the Stable Fly {Sfomoxys cal- 

 citrans) and in view of the fact that a single female specimen of the 

 common Sheep-Maggot Fly {Lucilia sericaia) is credited with laying 

 500 eggs, and probably " strikes " several sheep, a method of this kind 

 which might result in the capture of thousands of these flies appears 

 worth a thorough trial. A simple trap can be manufactured with 

 little trouble out of a kerosene case and a piece of wire gauze, the latter 

 being fixed to a movable light framework of wood, so that dead flies 

 can be easily emptied out. Its efficiency will mainly depend on the 

 attractiveness of the bait, for which decaying animal or vegetable 

 matter is suitable. The best mode of applying this method of trapping 

 would be that at least ten traps be used in paddocks of 100 acres, each 

 being placed on a slab fixed to a stout pole, the latter being sufficiently 

 high to prevent sheep from reaching the trap, and to give the breeze 

 a chance to become charged with the odour of the decaying bait. Any 

 decaying animal matter lying about must be burnt or otherwise 

 destroyed. 



Eine neue Art der Muckenbekampfung. [A new means of combating 

 gnui&.Y-Franhfmter Zeitung, Frankfurt, 25th Nov. 1913. 



This article refers to the plan proposed by Dr. Gebbing, Director of 

 the Zoological Garden at Leipzig, to employ the wild duck {Anas 

 boschas) as a destroyer of mosquito larvae. Several absolutely success- 

 ful instances are recorded, and the need of measures for the protection 

 of this bird is emphasised. 



