KuTTALL (G. H. F.) & Robinson (L. E.). Ticks ; a Monograph of the 

 Ixodoidea. Bibliography, ii. — Cambridge, May 1915, 32 pp. 



This bibliography contains the titles of 462 papers dealing with ticks 

 and their relation to disease. 



NuTTALL (G. H. F.) & Warburton (C). Ticks ; a Monograph of the 

 Ixodoidea. Part iii. — Cambridge, October 1915, pp. 319-550, 

 figs. 308-450, plates 8-13. 



This part deals with the genus Haemaphysalis, of which 50 species 

 and varieties are recognised. Many species, including their immature 

 stages, are figured for the first time. The life-history of this genus 

 agrees in the main with that of Ixodes. An account of the biology of 

 H. cinnabarina var. pimctata, H. cinnabarina, H. leporis-])alustris, 

 H. Jeachi, H. concinna and H. inermis is given. Of these species, 

 H. cinnabarina var. punctata and H. leachi have been proved to be 

 carriers of pathogenic Protozoa. The former occurs commonly on 

 sheep in Kent and is capable of transmitting British redwater, due to 

 Piroplasma divergens, to cattle. The latter is found throughout 

 Africa, where it transmits canine piroplasmosis. Among the natural 

 enemies of these ticks which are recorded are the Chalcids, Ixodiphagus 

 texamis, found in the engorged nymphs of H. Jeporis-palustris, and 

 I. caucurtei, in the nymphs of H. concinna and H. inermis. 



Las pulgas. [Fleas.] — Bol. Agricullura Tecnica y Economica, Madrid, 

 vii, no. 84, December 1915, pp. 1025-1031. 



This paper reviews in a brief and popular form the present-day 

 knowledge of fleas. The chief species of economic interest are 

 mentioned, and in the section dealing with them in their role as carriers 

 of bubonic plague it is stated that this scourge has killed seven million 

 people in the last 18 years. 



^ L'huile de Foie de Morue centre les Mouches chez les Chevaux. 



^ [Cod Uver oil against flies on horses.] — La Vie Agric. et Rur., 



Paris, V, no. 23, 4th December 1915, p. 421. 



Cod liver oil exhibits a specific toxic reaction in flies. A horse 

 which is rubbed over with this oil is quickly freed from flies, without 

 injurious eflects, the oil acting as a repellent for from 10 to 18 hours 

 after application. 



BiSHOPP (F. C). Fleas as Pests to Man and Animals, with Suggestions 

 for their Control. — TJ.S. Dept. Agric. Washington, D.C., Farmers' 

 Bull. no. 683, 8th November 1915, 15 pp., 6 figs. 



Much of the matter in this paper has been recently published [see 

 this Review, Ser. B, iv, pp. 4, 5]. In the eastern part of the United 

 States, Ctenocephalus canis (dog flea) is of great importance as a house- 

 hold pest, while in parts of the south and west, the human flea {Pidex 

 irritans) is primarily responsible for house infestations. A number of 



