174 



as healthy and used for experiment. Forty-five bugs were placed in 

 a glass vessel with five of these bats. Their blood was examined three 

 times a day on the first and second days and subsequently once daily. 

 In four bats, trypanosomes were found in the blood between the 27th 

 and 72nd hour after contact with the bugs, the remaining bat not 

 being infected. This is regarded as proving that trypanosomiasis in 

 bats is carried by bugs. 



In a further paper by the same author it is noted that Trypanosoma 

 vespertilionis, Batt., was not found to be pathogenic to mice, rats, 

 guineapigs or rabbits. 



Beresoff (W. F.). Die schlafenden Fliegen als Infektionstrager. 



[Hibernating flies as infection carriers.] — Centralblt. Bakt., Parasit. 

 u. Infekt., Ite. Abt. Orig., Ixxiv, nos. 3-4, 13th June 1914, 

 pp. 244-250. 



Detailed accounts of experiments are given from which it is con- 

 cluded that not only hibernating flies, but also their dead bodies, can 

 convey infection. 



ZupiTZA (M.). Versuche und Vorschlage zur Verbesserung von Glossi- 

 nenfangmethoden. [Experiments and suggestions for the improve- 

 ment of methods of trapping Glossina.] — Arch. f. Schiffs- u. Trop. 

 Hyg., Leipzig, xviii, no. 11, June 1914, pp. 363-375, 2 figs. 



An improved form of sticky trap is described which may prove 

 useful in tsetse control. It is quite as efficient as a butterfly net, and 

 one man only is required to use it. The trap is donned by a native 

 clad in a porous, washable and dark coloured protective suit, and 

 consists of a plaited wire screen of oxydised metal, consisting of iron 

 wire, 2 millimetres thick, with a mesh of 1 centimetre. This is smeared 

 with a sticky material. The best shape is that of an oval tube entirely 

 enclosing the trunk and provided with armholes, and kept in position 

 with shoulder-straps. For work in the scrub or among bushes a closer 

 fitting device is better. The object of the open meshes, in conjunction 

 with the porous undersuit, is to give free passage to body emanations. 

 The sticky substance must be tenacious and free from any odour 

 objectionable to Glossma ; a resinous smell does not appear to be 

 repellent. Experiments made with traps of a purely mechanical 

 character, either portable or easily erected, were unsatisfactory, only 

 those Glossina in the immediate vicinity being caught by this method. 



Saunders (P. T.). Spraying for control of ticlts in Antigua.— If es/ 



Indian Bull., Barbados, xiv, no. 2, 24th June 1914, 

 pp. 122-125, 1 pi. 



A satisfactory spraying machine, erected at a cost of £67, in March 

 1913, is described. The machine has an " entrance race " and an 

 " exit race," which have sloping sides and are 1 foot wide at the 

 ground, widening to 3| feet at the top, in order to prevent animals 

 from turning round in them. The machine itself is of galvanized iron, 

 12 feet long and 1 foot wide at the foot boards, increasing to 3| feet 

 at its greatest width, and 6 feet high. The dip is administered by 

 means of atomizing nozzles, the position of which is so contrived as to 



