210 



The prevalence of malaria, which is one of the most serious diseases 

 in California, is being reduced by local campaigns against the 

 breeding gromids of Anopheline mosquitos. 



Filariasis is undoubtedl)^ present in the State, where suitable 

 mosquito hosts exist, and though there is no evidence of its spread, 

 the extent of its prevalence cannot be definitely stated in view of the 

 absence of recorded blood examinations necessary for its diagnosis. 



A Power Sprayer tor Mosquito Eradication. — California State Bd. 

 Health Mthly. Bull, Sacramento, xiv, no. 1, July 1918, pp. 20-21, 

 1 fig. 



An apparatus for oiling mosquito breeding pools is here described. 

 This consists of an air-compressor mounted upon a motor truck and 

 operated by the engine of the same, enabling oil to be sprayed under 

 compressed aii ; a long hose line permits of a wide radius of operation. 



Smith (E. L). Organising and Conducting State-wide Tick Eradication 

 in Louisiana.- e/^. American Vet. Med. Assoc, Ithaca, N.Y., liii, 

 no. 5, pp. 639-645, 7 figs. 



This paper gives an accomit of dipping cattle for the control of 

 ticks in liOviisiana under the Act of 25th July 1917, making such dipping 

 compulsory. 



Malaria Control. U.S. Public Health Reps., Washington, D.C., 

 xxxiii, no. 28, 12th July 1918, pp. 1154-1158. 



In 1917 the control of malaria by measures against* Anopheline 

 mosquitos, undertaken by a local community following anti-mosquito 

 demonstration studies in 1916, resulted in a decrease in the number 

 of cases reported of 85 '5 per cent. Based on the total number of 

 professional visits for the disease in 1916 and 1917, the reduction 

 in the latter year was 73 per cent., an important result in view of the 

 increased economic efiiciency made possible by this reduction. The 

 total cost of the two years' work was about £75,633, the relative cost 

 of the second year over the first showing a reduction of about 50 per 

 cent. 



Garman (H.). Household Pests and their Treatment. — Univ. Kentucky 

 Agric. Exp. Sta., Lexington, Circ. no. 15, June 1917, pp. 63-90, 

 14 figs. [Received 21st August 1918.] 



This circular gives the usual control measures against the commoner 

 household pests such as ants {Monomorium mimmum and M. 

 2)haraonis) ; house-flies {Musca domestica) ; mosquitos, including 

 Stegomyia fasciata {Aedes calopus), Cidex fatigans (quinquefasciatus) 

 and Anofheles maculipennis ; fleas, including Pulex irritans, 

 Cfenocephalus amis, C. fells and Xenopsylla cheopis ; the clothes 

 moths, Tineola biselliella and Tinea 'pellioiiella ; the bed-bugs, Cimex 

 {Acanthia) lectularius and C. hetniptera ; cockroaches, including 

 Phyllodromia germanica (croton-bug), Blatta orientalis (Oriental 

 cockroach) and Periplaneta americana (American coclo'oach) ; 

 termites ; and silver fish {Lepisma saccharina). 



