66 



dwelling to another. The role played in such spread by house-rats, 

 especially Mus rattus griseiventer, is also doubtful, as this rat is seldom 

 met with in the field. The significance of human intercourse, in the 

 widest sense, in the spread of plague is thus emphasised. 



Flu (P. C). Verdere onderzoekingen over de vraag of muskieten als 

 overbringers van pest kunnen optreden. [Further Researches on 

 the Question whether Mosquitos can act as Plague Carriers.] — 

 Geneesk. Tijdschr.v. Nederlandsch- Indie, Batavia, Ivi, no. 6, 1916, 

 pp. 917-921. 



An account is given of experiments with Anopheles rossi and Stegomyia 

 which show that, whilst mosquitos may harbour virulent pest bacilli 

 in the alimentary canal, their bite does not transmit plague from one 

 guinea-pig to another. Fleas harbouring bacilli in this manner are not 

 always able to transmit plague, and in these experiments with mosqui- 

 tos, such inability seemed to be a constant phenomenon. The British 

 India Plague Commission succeeded in infecting animals through 

 the bite of Culex fasciatus, so that the possibility of transmission 

 cannot be excluded, but the probability of this occurring under ordinary 

 conditions is exceedingly remote. The results of these experiments 

 agree with the fact that an epidemic of plague is entirely independent 

 of the presence of mosquitos. 



Flu (P. C). Vliegen en Amoebendysenterie. [Flies and Amoebic 

 Dysentery.] — Geneesk. Tijdschr. v. Nederlandsch-Indie, Batavia, 

 Ivi, no. 6, 1916, pp. 928-939. 



This paper describes experiments which lead to the conclusion 

 that under conditions obtaining in Java flies do not provide the most 

 common and important mode of transmission of amoebic dysentery. 

 Though the conditions prevailing in most of the native villages render 

 the presence of flies a possible factor, the author is of opinion that 

 contamination of drinking water is a far more important one. 



White (A.). The Diptera-Brachycera of Tasmania. Part II. — Papers 

 & Proc. Royal. Soc. Tasmania for the Year 1915, Hoharl, 

 24th February 1916, pp. 1-57, 13 figs. 



In this paper the families Tabanidae and Therevidae are dealt with. 

 A key to the former comprises the genera, Tahanus, Chrysops, Pangonia 

 (sens, lat.), Corizoneura, Diatomineura, and Pelicorhynchus. Among 

 the twenty-three species recorded the following are described as new : — 

 Tahanus tasmaniensis, T. hobartiensis, Diatomineura ianthina. Tahanus 

 exulans, Erichs., T.fraterculus, Macq., and T. gregarius, Erichs., which 

 have been described from Tasmania, cannot be identified from the 

 published descriptions and have therefore been omitted. 



White (A.). The Diptera-Brachycera of Tasmania. Part III.— Papers 



<fc Proc. Roy. Soc, Tasmania for the Year 1916, Hobart, 

 19th February 1917, pp. 148-266, 26 figs. 



This paper deals with the Asilidae, Bombylidae, Empidae, Doli- 

 chopodidae and Phoridae. Keys to the families and sub-families 

 are given and ten new genera are erected, while of 105 species dealt 

 with, 38 are described as new. 



