120 SCIENTIFIC REPORTS OF THE AGRICULTURAL RESEARCH 



the Surra Committee meeting at Simla in May. This work 

 has for its object the discovery of a repellant, limited as 

 regards cost, which shall effectively prevent Tabanidse from 

 attacking camels., and so help to check the spread of surra 

 among transport and other animals. 



Through the kindness of the Inspector- General of 

 Forests and the officers of the Forest Department at Dehra 

 Dun, arrangements have been made to carry on the work 

 in the laboratories of the Forest Research Institute, and it 

 is still in progress. 



VI. Programme of Work for 1918-19. 

 The most probable main lines of work are — 



(1) General methods of insect-control. 



(a) Attempts to ascertain the nature of the reactions 



which determine the processes of feeding, pair- 

 ing, and egg-laying in insects. 



(b) The direct effect of certain physical and chemical 



conditions or agents on the above reactions, 

 more particularly with reference to disease- 

 carrying insects. 



(c) The physiological action of insecticidal and deter- 



rent substances. 



(2) General bionomics of insects and Arachnids which 

 suck blood or otherwise cause disease in man or animals. 



(3) Special work on surra-prevention, undertaken at 

 the instance of the Surra Committee, in collaboration with 

 officers of the A.V.C. 



(4) Investigation of methods for combatting mange in 

 transport camels, in collaboration with the military 

 authorities. 



VII. List of Publications. 



Sen, S. K. . . • Beginnings in Insect Physiology and their 



Economic Significance. (Agric. Jourri. 

 of India, vol. XIII, pt. IV.) 



