PIERQUIN, L. (1950) Relation de quelques essais concernant I'effi- 

 cacite, sur Ornithodorus moubata, de trois insecticides 

 a base de I'isomere "Gamma" de I'hexachlorure de benzene. 

 Ann. Soc. beige Med. trop., 30(3): 553-564. 



PIERQUIN, L. A. & Nia-EGEHIS, C. (1953) Notes sur I'elevage de 

 Ornithodorus moubata (Murray), (Acari, Argasidae). 

 Bull. Inst. Sci. nat. Belg., 29(/h5):L-6. 



PIGOURY, L. (1937) Piroplasmes et piroplasmoses en Syrie et au 

 Liban. Bull. Soc. Path, exot., 30(9): 767-772. 



PIJPER, A. (1934) Ticic-bite fever, a clinical lecture. S. Afr. 

 med. J., 8(l5):553-556. 



PIJPE3^, A. & CROCKED, C. G. (1938) Rickettsioses of South Africa. 

 S. Afr. med. J., 12(17): 613-630. 



PIJPER, A. & DAU, H. (1933) South African tick-bite and the 



treatment of general paralysis. Ned. Tijdschr. Geneesk. 

 77, Pt. 2, (18): 2030-2037. 



(1935) South African typhus. J. Hyg., Camb., 



35:lieul24. 



PILLIPEI^KO, V. G. & DEREVIAlvTCHEJKO, R. I. (1955) A case of finding 

 nymphs of Hyalomma plu^^-beun Panz., on a hare infected 

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PIONTKOVSKAIA, S. P. (1949) The ticks Hvalom-na marginatum Koch as 

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^ (1950) Influence of agricxilture on the popu- 



lations of Hyalomma marginatum marninatum Koch in the 

 areas of field protection plantations . Ibid , 29(4): 

 297-300. "~ 



___________^ (1951) On the importance of agricviltural 



measures for clearing tick (Hyalomma plximbeum plumbeum) 



habitats, (in Russian). Ibid , 30(4);319L324. 

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