129 



McHattie (A. C. N.). Medical Report on the Bahamas for 1914,51 pp. 

 [Received from Colonial Office 4tli June 1915,] 



Mosquitos were very prevalent during a great part of the year in 

 spite of the large reduction in the number of breeding places effected 

 by the removal of rubbish. Experiments were made with certain 

 fish indigenous to the island, which were thought to be destroyers of 

 mosquito larvae. These fish were caught in brackish water and fed 

 readily on larvae and the change from brackish to well water did not 

 seem to affect them at all. Further experiments showed that though 

 mosquitos will breed in the brackish water, the larvae have httle 

 chance of attaining to maturity, owing to the presence of the fish. 



Laurie (D. F.). Report of the Poultry Expert for the Year 1913-1914. 

 —Adelaide, 1915, 7 pp. [Received 16th May 1915.] 



A section of this report deals with the causes of loss and sickness 

 among poultry. The effects of bites of the poultry tick, Argas persicus, 

 have been responsible for much mortality, especially in the country 

 districts. This tick is invariably the carrier of Spirochaeta marchouxi 

 vel gallinarum. 



Woodcock (H. M.). Report on Work done at the University of London 

 during the Year ending 30th June 1914. — Rept. Advisory Com- 

 mittee Trop. Dis. Res. Fund for 1914, London, 1915. Appendix ii, 

 pp. 81-86, 



This paper deals with flagellates occurring in the common British 

 mosquito, Cidex pipiens, and with the development of the trypano- 

 some of the Little Owl (Athene noctua) in C. pipiens. 



Alcock (Lt.-Col. A.). Report of the Entomologist to the London School 

 of Tropical Medicine for the half year ending 31st October 1914. — 



^ Rept. Advisory Committee Trop. Dis. Res. Fund for 1914, 



London, 1915. Appendix iv, pp. 95-96. 



From North Borneo, Dr. E. L. Mansel sent a specimen of Chrysops 

 fixissima with an account of the effects of its bite upon a strong and 

 healthy European planter. The bite was not painful at the moment, 

 but caused enormous local sweUings and eventually gave rise to nausea, 

 malaise, and general prostration, lasting for forty-eight hours. The 

 fly is well known to the natives of the district, who call it " pikat." 



From Northern Nigeria, Captain H. D. Foulkes sent a number of 

 Ornitliodorus savigmji and stated that this tick is found in that country 

 only in sandy districts in the vicinity of Lake Chad, and there chiefly 

 on the sites of old-estabUshed markets. The natives who know it 

 as " Girgidi " are said to fear its bite as much as they do guinea worm. 



(C1S9) Wt.P12/91. 1500. 9.15. B.&F.Ltd. Gp.11,3. a 



