199 



O'Faerell (W. E.). Preliminary Note on a New Flagellate, 

 Crithidia hyalovDiittc, sp. nov., found in the Tick lli/alornma 

 aeqyptium, L. — Jovrn. Trap. Med. cV Hjirj., London, 15th 

 Aug-. 1913, pp. 245-246, 8 %s. 

 The author describes the flagellate stage of a uewly discovered 

 protozoal parasite of the common cattle tick of the Anglo- 

 Egyptian Sudan. 



Celli (A.). la Malaria in Italia durante il 1911. [Mahiria in 

 Italy in 1911.] — .4/;/;. d'Ifjieit. Sperim., Turin, xxiii, pt. 1, 

 1013, pp. 1-61. 



In 1911, a very wet spring, following upon a long and severe 

 winter, kept back the mosquitos until the warm weather, when 

 they appeared in swarms. There was little malaria in Lombardy 

 and the Provinces of Yercelli, Grosseto and Cotrone, and it re- 

 mained fairly stationary in Latium and the South generally ; on 

 the other hand there was a recrudescence in the Lower Venetian 

 region, which was more marked in Sicily, Sardinia and Algeria. 

 In Bulgaria and Greece the epidemic was very mild. There does 

 not seem to have been a uniform relation between the intensity of 

 malaria and the number of mosquitos, but in the lower Veronese 

 region, as in Bulgaria, it was found that the disease was more 

 widespread where the ricefields were badly cultivated. In one 

 case in Algeria malaria was found to extend for about three miles 

 crom the marsh in which the mosquitos bred. 



The number of species known to carry the disease is constantly 

 increasing, and in the valley of the Amazon Anopheles (Cellia) 

 albiinanus and argyrotarsis have been added to the list. 



The cheapness of heavy petroleum oil is counterbalanced by its 

 leaving air-holes for the larvae on the water. Where it has been 

 possible to cover this completely with algae, on the other hand, 

 neither larvae nor nympths have been found, and the same 

 result can be obtained if the water is kept wholly free from marsh 

 vegetation. The imago can. be destroyed in winter by spraying- 

 the walls of cellars and similar buildings with " Mikrothan " and 

 " Floria." A Cerafopogon is said to attack mosquitos, but the 

 question is whether, if introduced, it might not itself propagate 

 the disease. 



GoBERT (E.). Quelques Aspects du Probleme antipaludique en 

 Tunisie. [Some aspects of the Malaria Problem in Tunis.]— 

 Arcli. Inst. Pasteur., Tunis., nos. i & ii, 1913, pp. 121-128. 

 An endemicity of 80 per cent, among the infant population in 

 the neighbourhood, with a high mortality among the adults, of 

 whom the survivors were unable to work, are the conditions which, 

 the author says, preceded the draining of the Mabtuka Garaa lake, 

 which was covered with swarms of mosquitos during the greater 

 part of the year. Since the drainage, examinations made at the 

 beginning of June and end of September disclosed neither en- 

 largement of the spleen in infants nor fever among adults, the 



