148 



Imes (M.). Sheep Scab. — U.S. Dept. Agric, Washington, D.C,y 

 Farmers' Bull. no. 713, 17th April 1916, 36 pp. 21 figs. 

 [Received 12tli July 1916.] 

 The first part of this paper contains an account of the cause, means 

 of spreading, and effects of scabies in sheep. The remainder is occupied 

 by a description of dipping tanks and fluids used in the treatment of 

 the disease. Two dippings at an interval of from 10 to 14 days are 

 necessary for the eradication of sheep scab. The dips in general use 

 in the United States are lime-sulphur, and nicotine and sulphur. The 

 former is prepared according to the formula : — 8 lb. unslaked lime, 

 24 lb. flowers of sulphur, 100 U.S. gals, water. A paste consisting of 

 the lime, sulphur and a little water is made up to 30 gals., and this 

 quantity is then boiled for two hours. After being allowed to settle, 

 the clear liquid is run off and made up to 100 gals. The concentrate 

 thus obtained is diluted 3| times before use. The temperature of this 

 dip in the tank should be maintained at 100° to 10.5° F. The second 

 dipping fluid is prepared from 16 lb. flowers of sulphur, ^ lb. nicotine 

 (40 per cent, solution), and 96 gals, water ; the temperature in the 

 tank should not be raised above 110° F. 



GoLDSMiD (J. A.) & Crosse (W.). Some Notes on Dengue. — Med. JJ. 

 Australia, Melbourne, 6th May 1916, pp. 377-378. [Received 

 11th July 1916.] 



The outbreak of dengue at Murwillumbah, New South Wales, which 

 is discussed in this article, was coincident with the appearance of 

 Stegomyia fasciata in the affected district. The first definite diagnosis 

 of the disease was made about 10th February and between that date 

 and 10th April it was very prevalent. 



Wyler (E. J.). Four Reports on Yeliow Fever in Nigeria during 1913. 



— Rejpt. Yellow Fev. Commiss. {West Africa) ; Yellotv Fev. Bur. 

 Bull., Liverpool, Supplement i, May 1915, pp. 1-196, 7 plates, 

 79 charts, 5 plans, 1 map. [Received 10th July 1916.] 



These reports contain an account of the conditions as regards 

 Stegomyia fasciata in various Nigerian towns which had been ^^sited 

 by persons in whom yellow fever was detected. Larvae were com- 

 monly found in the numerous earthen jars used for storing water in 

 native houses, water-tanks attached to European dwelhngs being 

 infected to an extent of 88 per cent. At Warri, anti-mosquito measures 

 were carried out under the direction of sanitary officers and larvae of 

 Stegomyia were rare. Screening of wells, tanks, etc., was carried out 

 at Forcados and Burutu, and at the time of investigation few larvae 

 were found. They were however abundant in an unreclaimed swamp 

 a short distance away, the water of which contained chlorides equivalent 

 in amount to 4 '74 per cent, of common salt. The river craft, and 

 probably also the swamp just mentioned, constituted the main source 

 of supply of S. fasciata. Ocean-going and river steamers afforded 

 facihties for the transit of Stegoryiyia. Twelve cases of yellow fever 

 were definitely diagnosed on ocean-going vessels in 1912 and 1913, 

 but in those ships in which single cases of fever occurred, the 

 patients were probably infected whilst ashore. There is no evidence 

 that yellow fever has been introduced into Nigeria from a neighbouring 

 dependency. 



