76 



Galli-Valerio (B.). Beitrage zur Biologie und zur Bekampfung der 

 Lause. 3. Mitteilung. [ContributioEs to the Biology and Control 

 of Lice. 3rd Communication.] — Centralbl. Bakt., Parasit. u. 

 Infektionskr., Jena, Ite Abt., Orig.. Ixxiv, no. 1, 19tli December 

 1916, pp. 33-35. 



The head louse [Pediculus capitis] cannot be induced to live on 

 white mice, though experiments made to determine whether this was 

 due to the light colour of the host were inconclusive. The protective 

 value of various substances against the bites of lice was investigated, 

 basic nicotine (12 per cent.) alone proving of any use. A number of 

 insecticides were tested and it was found that oils kill lice quickly, 

 especially the thicker kinds, as these adhere better. 



Steudel ( — ). Fraktionierte Entlausung. [Louse Eradication in 

 successive Stages.] — MiincJiener Med. Wochenschr, Munich, Ixiv, 

 no. 42, 15th October 1917, pp. 1373-1375. 



The process of eradicating lice on man by a single treatment requires 

 so much time and care as to be inapplicable where a large number of 

 troops is involved. In the case of a division or entire army which has. 

 become infested during mobile operations it is not feasible — at the- 

 beginning of a war of positions — to change quarters after disinfection 

 or to disinfect the men thoroughly. It is suggested that disinfection 

 by successive stages solves the problem. This method aims at destroy- 

 ing as many lice and eggs as possible on each of several occasions 

 divided by a 14-day interval. Each treatment comprises bathing the- 

 men and passing their clothes through a heating apparatus. The first 

 one will kill the majority of the lice and eggs and the second will kill 

 almost all the lice that previously escaped as well as individuals that 

 have since hatched. The 14-day interval does not allow the lice to 

 increase to such an extent as to induce migration, so that the second 

 treatment uall — theoretically — dispose of all the lice, leaving a small 

 number of eggs only. A third treatment after a similar interval will 

 kill all the lice hatched from these eggs, while they are still immature, 

 and should ensure total eradication. An example is given of the- 

 practical working of this method in the case of a body of troops 2,000 

 strong equipped with a plant capable of dealing with 30 men and their 

 equipment. 



Werner (H.). Die Malaria im Osten und ihre Beeinflussung durch 

 die Besonderheiten des Krieges nebst Bemerkungen iiber Ano- 

 phelenbiologie und Malariatherapie. [Malaria on the Eastern 

 Front and the Influence exercised on it by the Special Conditions 

 of the War, with Remarks on its Treatment and on the Biology 

 of Anophelines.] — Miinchener Med. Wochenschr., Munich, Ixiv, 

 no. 42, 15th October 1917, pp. 1375-1377. 



In the case of malaria on the eastern front the annual curve of 

 endemicity varies from the usual type ownng to the abnormal conditions 

 due to the War. In this paper a chart of the incidence of the disease 

 in a corps in the summer of 1916 shows that malaria was present in 

 March, remained at the same low level until mid- April, then increased 

 up to the first week in June, and after diminishing till the first week in 



