522 SECTIONAL TRANSACTIONS.— M. 



upon the suitability of a variety of conditions concerning the environment 

 of their parasitic Hfe in the grazing animal and that of their free life in the 

 pastures. Their control will continue to be an urgent problem in animal 

 nutrition until we understand the detail of their development so well that 

 we are able to make suitable readjustments in the environments that will 

 compensate for the departure from the original scattered condition of 

 grazing which our grassland improvement has brought about. 



General Discussion opened by Dr. J. Hammond, F.R.S. (11.30) 



