87 



bitten by small flies, not Phlehofomus, on still evenings on Blakan Mati, 

 an island twice as far from the main island of Singapore as Pulan 

 Brani. Both islands are covered with tropical vegetation and are 

 the exact antithesis of Malta. 



Specification of labour and material required in the construction of a 

 shower spray for the treatment of 250 sheep per hour, as recom- 

 mended by the Department of Agriculture and Stock. — Queensland 

 Agric.Jl., Brisbwue, in, no. 1, January 1915, pp. 14-15, 1 diagram. 



Full constructional details are given, with a diagram showing the 

 plan, section and elevation of the shower-spray. 



Cory (A. H.). The sheep blow-fly. — Queensland Agric. JL, Brisbane, 

 iii, no. 1, January 1915, pp. 15-17. 



In dipping experiments at Gindie State Farm, 10 batches of 50 sheep 

 each were dipped in 10 different dipping baths and 145 untreated 

 sheep were kept as controls. Of the latter, 5 died from causes uncon- 

 nected with flies, while 9 of the treated animals broke into neighbouring 

 paddocks and were lost. The remaining 631 sheep were examined, 

 and it was found that 167 were blown, being 92 of the 491 dipped 

 ones and 75 of the 140 undipped ones. These figures work out at 

 26'44, 18'73, and 53"67 per cent, respectively, and it would therefore, 

 appear that dipping affords some protection. The flies appeared to do 

 serious harm only when the ewes began to lamb. It will be necessary 

 to repeat the experiments, as the period from April to June 1914 was 

 exceedingly dry and the flies did not, in consequence, appear until later. 



Gordon (P. R.). Can the cattle tick be exterminated in Queensland? 



— Queensland Agric. JL, Brisbane, iii, no. 1, January 1915, 

 pp. 24-26. 



In 1863, the outbreak of sheep scab in New South Wales caused 

 the passing of a Quarantine Act. The disease was completely stamped 

 out in 18 months and the Colony was proclaimed clean in 1866. The 

 author considers that success was due to the determined insistence 

 with which all the provisions of the law were carried out. The tobacco 

 and sulphur dip was found to be the most rehable then available. 

 It was adopted as the Government dip and the use of all other specifics 

 was strictly prohibited. The tobacco infusion destroyed the Acari, 

 while the sulphur prevented reinfestation for a period of six months, 

 by which time all parasites on trees, fences, etc., had died off. Two 

 dippings, within an interval of from fourteen to twenty days, were 

 found necessary, as many of the parasites were in a state of partial 

 development under the skin at the time of the first dipping. Proprie- 

 tary dips were not even allowed a trial, one reason being that their 

 composition was not made public. In any attempt to stamp out the 

 cattle tick in Queensland, a means of preventing reinfestation must, 

 as with sheep scab, be of the very first importance. Even so, it is a 

 question whether extermination can be attained until all large grazing 

 holdings have been subdivided into smaller properties and all cattle 



