188 



and in the damp, sandy soil under the leaves. The bite of 0. marocanus 

 is not dangerous to man ; cases in which a European and natives were 

 freely bitten without serious consequences are mentioned. 



Delanoe (P.). De I'Utilisation des Tonneaux comme Cages a Animaux 

 de Laboratoire. — Bull. Soc. Path. Exot., Paris, xv, no. 6, 14th 

 June 1922, pp. 420-i23, 2 figs. 



The transformation of barrels into breeding-cages for laboratory 

 animals is described ; oil barrels are preferable as they do not rot and 

 they also resist heat better than others. 



LiiGER (M.) & Baury (A.). Recherches sur I'lndex endemique du 

 Paludisme en Guinee. — Bull. Soc. Path. Exot., Paris, xv, no. 6, 

 14th June 1922, pp. 497-499. 



The authors have recently ascertained the blood index and the spleen 

 index in children in French Guinea who did not complain of fever. 

 The investigations were conducted in February, in the middle of the 

 dry season, and show that the active power of malarial infection 

 remains high at that season. Plasmodium malariae occurred in 38 cases ; 

 P. praecox in 27 ; and P. vivax in none. A spleen index of under 10 

 corresponded to a parasite index of about 50. The infection by P. 

 malariae does not seem to follow a previous infection by P. praecox. 

 At this season of the year, Anophelines are very rare in French Guinea, 

 at least at Conakry and Kindia. Only one specimen, Anopheles 

 (Pyretophorus) costalis, was captured. 



Hommage a A. Laveran. — Arch. Inst. Pasteur Afr. Nord, Ttmis, ii, 

 no. 2, June 1922, pp. 157-164, 1 portrait. 



In honour of the late Prof. Laveran, reprints are given of four of his 

 earUest papers on the subject of the haematozoa causing malaria. 



HoRNus (P.). Note sur les Formes atypiques de Plasmodium praecox. 

 — Arch. Inst. Pasteur Afr. Nord, Tunis, ii, no. 2, June 1922, 

 pp. 227-229, 12 figs. 



Since the pubHcation of Vialatte's paper [R.A.E., B, x, 48] the author 

 also has observed atypical forms of Plasmodium praecox, always in 

 association with schizonts and crescents. He is of opinion that these 

 forms are probably normal in the development of P. praecox, but that 

 they are retained in the deep-seated organs and do not pass into the 

 peripheral blood stream, except in the case of a weakening of the 

 system in very severe illness. 



LoNj ARRET ( — ). La Trypanosomiase Humaine dans le Territoire du 



Togo. — Ann. Med. & Pharm. colon., Paris, xx, no. 1, January- 

 April 1922, pp. 18-21. 



The occurrence of sleeping sickness in Togo is compared with that 

 of other diseases. It is considered that the Germans exaggerated its 

 importance in that locality, and that anything beyond the usual 

 precautionary measures is not warranted. 



