igos ] CONDITIONS OF THE TRADES-MONSOON AREA. 163 



areas, mainly with the object of determining whether, in the case 

 of these pressure oscillations, there occurs any horizontal transla- 

 tion in the pressure changes or whether they occur simultaneously 

 throughout the whole area. 



Numerous tables and figures are given in the memoir to assist in 

 the discussion of the observations. 

 Meteorological Office, 

 India. 



