(iMclies were du^', Imt lliis is llie least effective and most expensive 

 tnnii (it (Iraina-ie. TJiey till up (luickly with j^iass and have to 

 be cleaJied out once a foituif^lil . 



Ill order to destroy cover for tiie aduH mosquito, Hie grouud 

 was cleared of brnsliwood and ^rass foi' 100 yards round the 

 place to be ])rote('ted. If the locality was to be occupied for a 

 year or more ii -was more economical to level the ground and 

 plant grass which c(U[Jd be kept down by machine nr scythe. A 

 limited anu)unt of shrubbery oi' a few i rees near a dwelling are 

 allowable. 



The aiitlnu' emphasises tite necessity dl constani supervision of 

 screens, the use of g'ood nmterial and good worknuuisJii]). as, if 

 properly made in wire, they will last o years. There are plenty 

 on the market that will not last six months. 



Prophylactic quinine was supi)lied in ^J-grain doses, either in 

 solution, as a tonic, or in pills. It Avas placed on the table at 

 all the messes and g-iven to any emjjloyee Avho ai)i)lied for it. 

 The three disjjensers of ea(di district also went round to the 

 villages offering- quinine to all who w^ould take it. In this way 

 about 20,000 doses were supplied daily to a population of -10,000. 



The author regards prophylactic quinine as a most important 

 measure. Phinotas oil and co})i)er sul])hate were used in places 

 which could not be drained ; oil for temporary pools on construc- 

 tion woi'k. or in temporary camps wheie drainage would be too 

 costly, or in any i)lace in whicdf drainage was not cairied out. 

 It was also used for killing larvae in the algae and grass along 

 the edges of lakes, swamps or streams. Sulphate of cojjper was 

 used in the same way. 



The author considers that the only jjraidical ])rotection for 

 1roo])s on the niandi in a malarious country is i)ro])hylactic 

 (|uinine. Real exjjosure to malarial infection can only occur in 

 a town. With a fresh cam}) every night it is ])robable that such 

 A. 'Id //heirs as ])it the men wnuld not be infected. If one cam]) 

 were used for a week or mine the ground should be (feared and 

 draiued. 



Col. (lorgas IS \ery sliongly of oiiinion thai Ihe sanitar\ 

 officer should himself lune the superintendence of this work; 

 that is to say. it must be done by a man who understands why 

 it is done in order that it may be done })r()perly. With the 

 sjiread of knowledge the rng'iiieer, (|ua]ier-mastei' or jirovost of 

 the camp might be entrusted with the work; but it should be a, 

 sz/ic (jiid iioii that ihe sanitary otHcer should be hvdd i-es[)onsibl(* ; 

 he niusi therefore liave an immediate control of the working 

 force. If this is not the case the work is foredoomed (o fail. 



Brei.ni, (A.). Direcfor. Ausiralian Inst, 'i'rop. Med. Report on 

 Health and Disease in the Northern Territory. — BuUcfin of tlic 

 Noi-tJieni Terr/ for ij. No. la. July, 1012. pp. 10-24. 



Cases of malaria in the Northern '^Ferritory of Australia vary 

 greatly in number from year to year. The average number of 

 cases of 7nalaria 1i<"ated in Ihe hosjtital al Darwin for the years 



