174 



of technical and scientific terminology and should prove invaluable 

 to settlers (with a knowledge of Dutch) in any part of the globe. 

 The various methods suggested are made clear by examples, and to 

 guard further against incorrect working some failures are explained. 



The introduction briefly defines malaria, its transmission and 

 importance. In an unhealthy district in Batavia the deaths from 

 malaria in 1912 were 7"3 per cent, of the total, while its incidence 

 was 39"8 per cent, of the general diseases. A chapter is devoted to- 

 Anophehne and other mosquitos, with particulars of their habits and 

 a list of the species of south-eastern Asia. The destruction of the 

 malarial parasite in man is discussed, and various methods for destroy- 

 ing mosquitos and for filling up and draining land are described. 

 Drainage is dealt with very fully and clearly, many illustrations being 

 given, so that colonists will find this section of practical value. The 

 protection of individuals and communities is discussed. In one 

 chapter the relation of malaria to agriculture is considered, attention 

 being devoted to rice cultivation. It is pointed out that some regions 

 where rice is grown on an extensive scale suffer very little from malaria. 

 Another chapter deals with anti-malarial organisation, while the 

 concluding one records the notable instances where anti-malarial 

 measures have proved highly successful, e.g., the Beni-Ounif Oasis 

 in Algeria, where malarial infection in the garrison fell from 85 per 

 cent, to 3 "7 per cent. ; Formosa, where the deaths among the troops 

 fell from 214 per thousand in 1899 to 2*1 per thousand in 1907 ; 

 and the town of Ismailia, where the number of cases decreased from 

 1,800 in 1885 to 55 in 1905. 



The volume closes with an alphabetical list of 119 works on the 

 subject. 



Hase (A.). Die Bettwanze {Cimex lectularius, L.), ihr Leben und ihre 

 Bekampfung. [The Bed- Bug, its Life-history and the Methods 

 of combating it.] — Paul Parey, Berlin, 144 pp., 6 plates, 131 figs. 

 Price M. 6.50. [Notice in Zeitschr. Forst- u. Jagdwesen, Berlin, 1, 

 no. 4, April 1918, p. 188.] 



This monograph forms supplement No. 1 to Vol. iv of the Zeitschrift 

 fiir angewandte Entomologie and begins a series dealing with applied 

 entomology. The life-habits of Cimex lectularius are described at 

 length with the remedial measures dependent on them. 



WiLHELMi (J.). Die geraeine Stechfliege (Wadenstecher) ; Untersu- 

 chungen iiber die Biologic der Stomoxys calcitrans, L. [The 

 common Biting-Fly ; Investigations on the Biology of Stomoxys 

 calcitrans.'] — Paul Parey, Berlin, 110 pp., 28 figs. Price M. 6.50. 

 [Notice in Zeitschr. Forst- u. Jagdwesen, Berlin, 1, no. 4, April 

 1918, p. 188.] 



This monograph is the second of the series mentioned above and 

 forms supplement No. 2 to Vol. iv of the Zeitschrift fiir angeivandte 

 Entomologie. The author's own work on the biology of Stomoxys 

 calcitrans _wa.s carried oat in Germany and most of the results are given 

 here. 



