137 



Edwards (F. W.)- A new Trichocera from Siberia (Diptera Polyneura). 

 —Ann. Mag. Nat. Hist.. London, v, no. 29, Mav 1920, pp. 431-132, 

 1 fig. 



A new mosquito, Trichocera siherica, sp. n., is here described from 

 Yerschininsk, Yenisei River, Siberia. 



PiUTTi (A.) & Bernardini (L.). Sulla Derattizzazione nei Trasporti 

 navali mediante la Cloropicrina. [The Destruction of Eats on 

 Ships by Means of Chloropicrin.] — Rend,. Acad. Sci. Fis. Mat.. 

 Naples, xxiv, ser. 3^, nos. 1-3, January-March 1918, pp. 16-19. 

 [Received 22nd June 1920.] 



Successful experiments with chloropicrin against rats on ships are 

 described. 



I Gas velenosi nella Distruzione degli Insetti dannosi alle Piante. 



[Poisonous Gases for the Destruction of Insects injurious to 

 Plants.] — La Campaqna, Como. xix, no. 319. 15th April 1920, 

 p. 2. [Received 3rd June 1920.] 



A new company, Societa Italiana Fumigazioni Gas Tossici, has been 

 formed in Rome with the object of destroying noxious insects by the 

 fumigation of buildings, ships, goods and plants with poisonous gases. 



1VL4LKMUS (B.). Klinische Diagnostik der inneren Krankheiten der 

 Haustiere. [The Chnical Diagnosis of the Internal Diseases of 

 Domestic Animals.] — Leipzic, Max Janecke, 1920, 8th & 9th 

 edition, vii + 232 pp., 67 figs. Prices ll6\ M. 



This useful little volume aims at giving in concise form all informa- 

 tion helpful in enabling the veterinary surgeon to establish a correct 

 diagnosis, and is the outcome not only of the author's own experience, 

 but of that of veterinarians generally. The subj ect matter is divided 

 according to the organs affected, and each section closes with a 

 review of the diseases concerned. 



The external parasites mentioned include lice, fleas, ticks and mites. 



Bevan (LI. E. W.). Inoculation of Cattle against Redwater and 

 Gall-Sickness. — Rhodesia Dept. Agric, Salisbury, Bull. 316, 

 April 1919, 10 pp. [Received 1st June 1920.] 



The system of inoculation of cattle against redwater and gall sickness 

 with improved strains of virus is described. It is pointed out that 

 progressive farmers, who keep their stock free from the blue tick 

 {Margaropiis decoloratus] by short-interval dipping, lose rather than 

 gain under the present state of affairs, as their stock is not so readily 

 saleable in spite of its better quality, owing to its greater liabihty to 

 the diseases in question. This difficulty can be overcome by inocula- 

 tion, and the practical utility of valuable imported stock, absolutely 

 necessary for the improvement of the native breeds, can only be secured 

 in this wav. 



