42 



failure of owners to dip their stock, as to the following contributory 

 causes : — Inefficient dipping, which is the result of non-compliance 

 with directions regarding the mixing and strength of the wash used ; 

 the use of non-poisonous dips ; deterioration of the dipping material, 

 owing, probably, to a shortage of some of the necessary chemicals ; 

 and, finally, the failure to dip lambs at the same time as the rest of the 

 flock. 



Sturgess (G. W.). Report of the Government Veterinary Surgeon 

 for 1916. — Ceylon Administration Report, 1916 ; Colombo, Part 4, 

 26th February 1917, 6 pp. 



The following insects were identified during the year : Tahanus 

 striatus, F., Chrysomyia (Pycnosoma) flaviceps, Mg., causing myiasis 

 in a dog's mouth, and a tick, Margaropus (Boophilus) australis, Fuller. 



Sweet (Georgina) & Seddon (H. K.) The Viability of Melophagus 



ovinus, Linn., the Sheep Louse-Fly, Sheep Ked, or Sheep-" Tick." 



— Veterinary Jl. (with Australian Supplement), London, Ixxiii, 

 no. 4, April 1917, pp. 6-14. 



The only records of this subject appear to be those of Curtice and 

 Swingle, both of whom found that Melophagus ovinus, L., died within 

 four days when removed from the sheep. The experiment detailed 

 in this paper were performed with batches of 20 examples of this 

 Hippoboscid fiy taken from unshorn sheep in November, i.e., the 

 Austrahau summer. These all died, under various experimental 

 conditions, within 2-11 days. The experiments point to the conclu- 

 sions : (1) That a moderately cool, uniform temperature is the most 

 favourable condition for the persistence of the insect off the sheep 

 and without food, especially if it be dry. (2) If extremes of temperature 

 be present, moisture is necessary, dryness soon proving fatal. (3) The 

 life of individuals in shed wool is short under a uniform temperature 

 whether cool or moderate. (4) The state of nutrition does not seem 

 to have influenced the vitality of these flies. 



ViGEL & Cholet. Lepinay's Treatment of Mange by Sulphurous Anhy- 

 dride, applied to the Horse. — Veterinary Jl., London, Ixxiii, no. 8, 

 August 1917, pp. 267-276, 6 figs. 



The authors, who belong to the French Army Veterinary Service, 

 claim originality for the application of sulphurous anhydride (SO2) 

 in the treatment of horse-mange. The plant consists of a generator 

 and a disinfecting chamber, details of which are given. The disinfect- 

 ing chamber may contain as many as ten stalls, each of which has a 

 window allowing the horses' heads to project. A cloth collar is fitted 

 to the window^ and fastened round the animal's neck, or, in the case 

 of a new model, drawn up on to the forehead, above the eyes, on to 

 the temples and under the throat. The horse is clipped and then 

 washed with a solution of sodium carbonate and soft soap worked 

 in with a stiff brush. Fumigation is effected when the skin is 

 thoroughly dry, generally on the next day. With this apparatus it 

 is easy to attain a rapid concentration of 5|-6 per cent, of gas, the 



