]29 1'^ 



Radcliffe (L.). Fishes destructive to the Eggs and Larvae of 



Mosquitoes. — Dept. Conwiercc, Bur. Fish., WasJiington, B.C., 



Economic Circular no.l7, 1st July 1915, 19 pp., 28 figs. [Received 



18th May 1920.] 



In considering the fish that are suitable in the United States for 



destroying the early stages of mosquitos, the habits of any particular 



species of mosquito and its usual breeding places must be considered 



if success is to be attained. Some breed in casual collections of water 



where fish could not be introduced, while various species of fish are 



adapted for ponds, ditches, artificial reservoirs or running water. 



Fresh water larvicidal fish include •.—Fundulus diaphanus, F. dispar, 

 F. notatus, F. clmjsotus, F. nottii. Enneacanthus obesus, E. gloriosus, 

 Lepomis gibbosus, L. cyanellus, Notemigonus chrysoleucus, Carassius 

 (turatus, Gambusia affims, Heterandriaformosa, Mesogonistius chaetodon,. 

 Centrarchus macropterus, Labidesthes sicculus, Elassoma zonatum, 



E. evergladei and Mollieinsia latipimia. 



Those suitable for brackish or salt water : Fundulus majalis, 



F. heterocUtus, F. grandis, F. similis, Lucania parva, L. venusta and 

 Cyprinodon variegatus. When fish are sent by train the journey should 

 be as short as possible, and the water kept at an even temperature and 

 well aerated. 



Bevan (L.E.W.). African Coast Fever. (Revised).— MotZma Agric. 



Jl, Salisbury, xvii, no. 2, April 1920, pp. 118-129, 5 plates, 



5 figs. 

 The bulk of the information contained in this paper has been noticed 

 previously [R.A.E., B, iii, 211]. African coast fever is transmitted 

 by the bite of certain ticks including Rhipicephalus appendiculatus 

 (brown tick), R. evertsi (red-legged tick), R. simus (black-pitted tick), 

 R. capensis (Cape tick) and R. nitens (shiny brown tick), the first-named 

 being the most important. 



Steam as a Bedbug Eradicator.— PwftZic ^mZi/i Repts., Washington, D. C, 



xxxiv, no. 48, 28th November 1919, pp. 2713-2714. [Received 



21st May 1920.] 



Attention is drawn to the successful control of bed-bugs [Cimex 



lectularius] by steam in a large house containing 70 rooms. The house 



was heated by radiators and pipes that had an exposed tap in every 



room. The plugs of the taps were removed and by raising the pressure 



to 80 or 100 pounds a temperature of 160° F. was obtained in about 2 



hours and kept up for about 3 hours. As no bugs were found 2 months 



after this procedure, it is suggested that the process should be repeated 



3 or 4 times a year. 



Uriarte (L.). La Profilaxis antipestosa y la Ensenanza pt)pular. — 



Andes Dept. Nac. Higiene, Buenos Aires, xxv, no. 6, November- 

 December 1919, pp. 7-13. [Received 21st May .920.] 

 This paper contains a popular appeal to the pubhc emphasising the 

 necessity of cleanliness, sanitation and hygiene in houses as the best 

 means of protection against infestation by fleas and rats, and therefore 

 the surest method of eliminating the danger of bubonic plague. The 

 regulations enforcing measures against rats are also enumerated. 

 (G94) Wt.P1850/163, 1,500. 8.20. B.&F.Ltd, Gp.11/14. a 



