162 



screening, the paint should be Hghtly daubed on the wire so that 

 it will not run and fill the openings. The author finds that fireplaces 

 are often left unscreened, thus nullifying the effect of a careful screening 

 scheme. If the fireplace is constructed of iron, brick, stone, or other 

 material not permitting the use of nails or tacks, adhesive plaster 

 2 inches wide may be used to attach the screen. 



Salm (A. J.). Sur les insectes suceurs de sang de I'Archipel de la 

 Sonde. [Blood-sucking insects of the Sunda Islands.] — Arch. 

 Parasitologie, Paris, xvi, no. 3, 1st March 1914, pp. 404-410, 6 figs. 



The author has collected 4 species of Chironomidae attacking man 

 in the Sunda Islands, which Professor de Meijere has determined as 

 Cerato'pogon stimulans, C. salmi, C. {Forcipomyia) vexans, and Cidicoides 

 pungens. The females alone bite, usually by day and preferably in 

 the sun. Two species of Acarids, so small as to be scarcely visible 

 to the naked eye, were found parasitic upon these midges. 



VON EzDORF (R. H.). Malarial fevers in the United States. — Public 

 Health Reports, Washington, D.C., xxix, no. 15, 10th April 1914, 

 pp. 871-877. 



In connection vnth the investigation into the prevalence and geo- 

 graphical distribution of malaria undertaken by the United States 

 Government, the author made surveys during 1913 in selected locahties 

 in Arkansas, Alabama and North Carolina. In each place visited 

 Anopheline breeding places were found. Anopheles quadrimaculatus 

 was the prevailing species and chiefly responsible for spreading malaria, 

 though A. punctipennis and A. crucians also occurred. In these three 

 States 802, 664, and 3,613 persons were examined, the percentages 

 of infection being 6'6, 3*76, and 8*55 respectively. Employers in 

 sawmills, on cotton fields, etc., increase their staff from 25 to 50 per 

 cent, during the malaria season (1st June to 1st November) on account 

 of the lowered productive capacity of the employees, and it is estimated 

 that an average worker loses at least 2 weeks during the season on 

 account of malarial fever. 



Veld Burning. — Rhodesia Agric. Jl., Salisbury, xi, no. 5, June 

 1914, p. 664. 



The Herbage Preservation Ordinance was promulgated in July 

 1913, and the Chief Native Commissioner, in his repoit for the year 

 1913, states that, partly owing to this measure and partly owing to 

 the increasing good sense of the natives, grass fires have been practically 

 non-existent. In several districts the natives have approached Native 

 Commissioners with a view to the relaxation of the law in respect of 

 reserves ; they maintain that the long grass attracts the larger carni- 

 vora, and that they suffer severe losses in stock from the depredations 

 of these animals. It is also stated that, as a result of the preservation 

 of the pasturage, ticks and mosquitos are more numerous. 



