162 



commencement. Such a forecast would, however, be wholly inaccurate 

 in the case, for example, of Bombay, where similar rainfall and economic 

 conditions have never given rise to great epidemics. 



Cragg (F. W.). Secretion and Epithelial Regeneration in the Mid- 

 Intestine of Tabanus. — Indian Jl. Med. Res., Calcutta, vii, no. 3, 

 January 1920, pp. 648-663, 3 plates, 1 fig. [Received 16th July 

 1920.] 



A full account is given of the processes of digestion in Tabanus, of 

 the secretions of the cardia and stomach, and of the regeneration of the 

 epithelium. As regards absorption of the digested food, this passes 

 through the cytoplasm of the cells of the stomach without assuming a 

 concrete form, and there is nothing resembling the complex phenomena 

 that have been described in connection with absorption in the ticks. 



In view of the general similarity of their structure and habits, it is 

 probable that processes similar to those described in Tabanus also 

 occur in the mosquito. 



BiSHOPP (F. C). Thoughts on Insects in Relation to Production ot 

 Live Stock and Poultry.— JL Amer. Vet. Med. Assoc, Washmgton, 

 B.C., Ivii, N.S., X, no. 4, July 1920, pp. 414-422. 



The variety of ways in which insects affect live-stock and poultry 

 are discussed. These include direct attack, such as injury by biting 

 flies, etc. , as well as the transmission of disease by ticks and insects. 



The necessity for careful work to ascertain the efiect of various 

 insects on the health, growth and production of animals, in order to 

 determine the importance of carrying out remedial measures, is 

 emphasised. This would be greatly facilitated by the co-operation of 

 the veterinary entomologist and animal husbandman. 



Smith (E. I.). Tick Eradication in the South. — Jl. Amer. Vet. Med. 

 Assoc, WasUngtmi, B.C., Ivn, new Ser. x, no. 4, July 1920, pp. 

 423-429. 



The history of tick eradication in the southern United States from 

 1905 to 1919 is briefly reviewed, and its general success iS emphasised. 

 Up to 1st December 1918, 63 per cent, of the territory originally 

 quarantined had been released. The intrinsic value of cattle is 

 estimated to have increased from 20 to 100 per cent, and that of land 

 from 25 to 100 per cent. 



SwELLENGREBEL (N. H.) & Swellengr;ebel de Graaf (J. M. H,). 

 Lijst der in Nederlandsch Indie gevonden Anophelinen. [A List 

 of Anophelines found in the Dutch East Indies.]— Tijdschr. Entom., 

 The Hague, Ixiii, no. 1-2, 15th July 1920, pp. 96-108. 



The mosquitos in this hst have already been dealt with [R.A.E., B, 

 vii, 183 ; viii, 136]. Their geographical and seasonal distribution 

 and pathogenicity are briefly noted. 



