192 



^o explain why only 0'8 per cent, of the population was infected. In 

 1902, Dutton and the author suggested that an immunity to human 

 trypanosomiasis does exist, and it is here submitted that additional 

 proof of the presence of some degree of immunity is afforded by the 

 good health at the end of 1918 of four natives who, in 1911, were 

 shown to harbour trypanosomes. 



Kizzi (M.). Malaria debellata in Trinitapoli. [Malaria conquered 

 in Trinitapoli.] — La Malariologia, Naples, Ser. I, xii, no. 1-3, 

 30th June 1919, pp. 47-53. 



This is an account of a vigorous anti-mosquito campaign carried 

 out in 1917-1918 at Trinitapoli in southern Italy. Whereas 196 

 deaths occurred in the town in 1916, this figure fell to 52 in 1917, 

 and 8 in 1918. 



Parsons (A. C). Practical Notes on Mosquito Surveys of Camps 

 and Barracks during 1917 and 1918. — War Office. Observations 

 on Malaria; London, H.M. Stationery Ofiice, December 1919, 

 pp. 95-131, Price 6s. 



This is a detailed and instructive account of the work done in military 

 stations and camps in England. The places visited are listed as an 

 appendix. The scheme adopted is described, and notes on Anophelines 

 are given. A. maculipennis was the commonest species ; A. bifurcatm 

 was much less frequently met with ; A. plumbeus was not found in 

 houses or animal sheds. In spring the males are the first to appear ; 

 during the summer females preponderate indoors ; in autumn, males 

 are seen in company with females. 



Robertson (J. C). A short Report on the Anti-Malaria Cam- 

 paign at Taranto during 1918. War Office. Observations on 

 Malaria; London, H.M. Stationery Office, December 1919, 

 pp. 149-177, Price 6s. 



|For many reasons the destruction of mosquitos at a large rest 

 camp formed at Taranto in 1917 became almost the sole protection 

 available [R.A.E., B, viii, 139]. Anopheles maculipennis, numerous 

 in the ditches and marshes, and A. bifurcatus, in the wells and troughs, 

 were the species found, and the former was more often a carrier of 

 malaria than A. bifurcatus. 



Macdonald (A.). Report on Indigenous Malaria and on Malaria 

 Work performed in Connection with the Troops in England 

 during the Year 1918. — War Office. Observations on Malaria; 

 London, H.M. Stationery Office, December 1919, pp. 178-258, 

 20 plates, 1 map. Price 6s. 



The chief of the " dangerous areas " scheduled by the War Office 

 embraced Romney Marsh, Sandwich, Sheppey, and Isle of Grain. 

 The probable date of infection in 47 out of the 61 cases observed in 

 1918 in England was August. In every case Anopheles maculipennis 

 was found in the huts, and its breeding-places were near by. Plas- 

 modium vivax was the parasite in all cases. A. macidipennis, which 



