45 



was exceptional, but explains the difference of opinion that has been 

 expressed regarding this point. Several of the snakes under observa- 

 tion died from the effects of excessive tick infestation. 



Wharton (L. D.). Notes on Two Species of Nematodes {Gongylonema 

 ingluvicola, Ransom, 1904, and Capillana strumosa, Reibisch, 

 1893), parasitic in the Crop of Chickens. — Jl. Parasitology, TJrhana, 

 111, V, no. 1, September 1918, pp. 25-28, 2 figs. 



Notes are given on two species of Nematodes found in the walls 

 of the crop of chickens. Both live in winding burrows in the mucosa 

 and are never found free in the lumen. Gongylonema ingluvicola, 

 Ransom, is the larger of the two and was found in about 40 per cent., 

 and Capillana strumosa, Reibisch, in about 30 per cent, of the chickens 

 dissected. 



Lloyd (Lieut. LI.). Lice and their Menace to Man. — London, 

 Hemy Frowde and Hodder & Stoughton, 1919, 136 pp., 

 13 illus., 4 charts. Price 7s. Gd. net. 



A general popular account of lice and their habits is given in this 

 book, which has been compiled for the use of the public rather than 

 for the specialist and sets forth the main facts concerning the lice 

 infesting man that have been discovered during the last few years. 

 With regard to the persistence of infestation among troops on active 

 service, it is pointed out that this is due not to any fault in the method 

 of disinfestation suggested, but>to the excessive difficulties of applying 

 them under campaigning conditions. The structure and habits of 

 the various species of lice, their dissemination and methods of 

 disinfestation and the diseases conveyed by them are discussed. 

 The biology, anatomy and control of Pediculus humanus occupy the 

 bulk of the work, but separate chapters are devoted to P. capitis 

 and Phthirius pubis as well as to typhus and relapsing fever, and the 

 book concludes with a chapter on trench fever by Major W. Byam, 

 R.A.M.C. 



Pierce (W. D.). Mosquito Control.— ^^rnc. News, Barbados, xvii, 

 nos. 433-434, 30th November & 14th December 1918, pp. 

 374-375 k 388-389. 



This article is a resume of modern knowledge of mosquito control 

 by means of sanitary engineering works, larvicides, oiling and predatory 

 fish. The protection of dwellings by screening and of the individual 

 by repellents is dealt with, formulae for some of the recognised 

 repellents being given [see this Review, Ser. B, vi, p. 69]. 



Jones (H. L.). Report of the Acting Chief Health Officer for Two 

 Years ending 30th June 1917. — Northern Territory Australia 

 Rept. Administrator for Years 1915-16 and 1916-17, Darwin, 10th 

 January 1918, pp. 36-40. [Received 15th January, 1919.] 



Malaria was prevalent in the country districts, epidemics having 

 occurred at four points during the i3eriod under review ; these soon 



