235 



Given (D. H. C). The Campaign against Mosquitoes on Board H.M.S. 



Cadmus in April, May and June, 1912. — //. R.N. Med. Service, 



London, viii, no. 4, October 1922, pp. 265-269, 1 fig. 



Since the publication of a description of a mosquito net for use with 



hammocks \R.A.E., B, x, 132], a similar type is here described which 



was used in H.M.S. Cadmus at Hankow in 1912. Other measures 



against mosquitos were the use of oil of citronella and joss sticks, 



and cleansing the ship's sampans, which were found to be the main 



source of the mosquitos. Not a single case of malaria was reported 



during a ten months' sojourn up the Yangtse. It is recommended 



that the allowance of gauze netting should be three yards by two, 



and that citronella oil should be supplied as part of the ship's stores. 



OuDEMAxs (A. C). Ueber die Metamorphose der vogelbewohnenden 



Acaridiae. [On the ^letamorphosis of the Acarids infesting Birds.] 



— Tijdschr. Ent., The Hague, Ixv, no. 1-3, 1st October 1922, 



pp. 184-191. 



i.\nnotations to the inforaiation on the above subject in existing 



literature are given, and also the results of the author's investigations 



of the various stages of bird-infesting Sarcoptid mites. 



Trigo (P.). La sama de las ovejas. [Sheep Mange.] — Anales Soc. 



Rnr. Argentina, Buenos Aires, Ivi, no. 8, 15th April 1922, 



pp. 238-241. [Received 21st October 1922.] 

 In this article the various forms of sheep mange — sarcoptic, psoroptic 

 and symbiotic — -are described, and the conditions influencing infestation 

 are mentioned. 



RosENBuscH (F.) & Gonzalez (R.). Contribucion al estudio de la 



Tristeza. [A Contribution to the Study of Piroplasmosis.] — Inst. 



Biol., Soc. Rnr. Argentina, Buenos Aires, 1922, 45 pp. 

 Attention is here called to the fact that mortality' in cattle from 

 piroplasmosis and other tick-borne diseases may be due to the non- 

 immunisation of young calves owing to lack, scarcity or non-infective- 

 ness of ticks, so that the animals are subject to a severe infection 

 when exposed to infected ticks in later life. 



Newman (L. J.) . Report of Economic Entomologist. — Western Australia 

 Dept. Agric, Ann. Rept. 1921-1922, Perth, 1922, pp. 28-30. 



The flea, Echidnophaga gallinacea, has spread to such an extent, 

 since its first discovery in the State as a poultry pest in 1921, that 

 the infested areas have now been put under quarantine as regards the 

 movement of birds, cats, dogs, or other animals likely to harbour 

 the parasite. 



]\lany colonies of Nasonia brevicornis (blow-fly parasite) have been 

 reared and distributed during the year. 



Kawaka:\ii (Z.). The Report on the Filariasis. — Japan Med. World, 

 Tokyo, li, no. 9, 15th September 1922, pp. 251-254. 

 The diseases caused by Filaria bancrofti, the sole agent of human 

 filariasis in Japan, are described, and those of dogs caused by F. 

 immitis are referred to for comparison. The author does not consider 

 that the theory that filariasis is transmitted b}/ the bite of mosquitos 

 is completely satisfactory. He is of opinion that Manson's original 

 theory — that the filarial larvae complete their development in the 

 mosquito, but then escape from it, or from its dead bod}', into water, 



