E. Os carrapatos sob ponto de vista agricola. [Ticks from the agncu 

 tural point of view.] — Chacaras e Qnintaes, S. Paulo, vii. no. 6, 

 pp. 43-48. 2 figs. 



In this more or less popular article, intended for the information 

 of farmers, the author says that the commonest ticks in Brazil are 

 Rkipicepholus sanguineus and Boophilus {Margaropus) annulatus, 

 both of which prefer cattle as a host, but occasionally attack other 

 animals, including man. The piroplasmosis of cattle {mal da fn'steza), 

 a disease caused by ticks, is discussed at some length, as well as the 

 use of trypan blue as a remedy. 



Danou (B.). Note sur les Cam6Iid6s et leur Laine. [Note on the 

 Camel and its wool.] — Bull. deVOjf. Gouv. Gen. de VAlgerie. Paris, 

 no. 23, 1913, pp. 146-157. 



A section of this paper deals with the diseases and accidents which 

 may affect the transport camel in Algiers ; amongst these is a form of 

 trypanosomiasis transmitted by a Tabanid fly called in Algiers the 

 " debab "' ; this fly has a natural enemy, another fly called the 

 " aichoug." The appearance of the aichoug is welcomed by the natives 

 as it is a sure sign that the " debab " will soon disappear. A native 

 doggerel declares that one aichoug kills 100 debab, blinds 100 and 

 lames 100 more. 



Tucker (E. S.). Formaldehyde Gas not effective upon Flies. — Bio- 

 logical Papers, Kansas Acad. Sci., Kansas, xxv, 1913. 



A number of house-flies w^ere observed in a room which was being 

 fumigated with formaldehyde gas. The size of the room was 12 feet by 

 14 feet by 8 feet 8 inches, and 2 lb. of formalin and ilb. of permanganate 

 of potash crystals were used to produce the gas. The operation was 

 started at 6 p.m. and the room was kept tightly closed until the fol- 

 lowing morning, when inspection failed to disclose a single dead fly. 

 In this case the gas was confined fully 13 hours ; the minimum tem- 

 perature was 56° and w^ater had been sprinkled on the floor to increase 

 the humidity. These conditions should have brought about perfect 

 chemical action. Formaldehyde gas as an insecticide is apparently 

 only effective upon insects when they are confined in concentrated 

 gas for some time. 



Hearsey (H.). Nyasaland Sleeping Sickness Diary, Zomba, pt. xxii, 

 31st Dec. 1913, 10 pp. [Received 17th March 1914.] 



In this part are recorded nineteen additional cases of sleeping sickness 

 notified during the past four months. The preventive measures 

 instituted in the Proclaimed Area of the Dowa district are attended 

 with satisfactory results. The importance of avoiding being bitten 

 by tsetse-flies is being instilled into the minds of the natives. Clearing 

 operations are progressing satisfactorily and Dr. Conran reports quite 

 a perceptible diminution in the number of flies in the villages in the 

 vicinity of the clearings. The village latrine system has been instituted, 

 but is not working as satisfactorily as was anticipated. Every effort 

 is being made to induce natives to use for bmlding purposes the timber 



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