312 DISCOVERY REPORTS 



little doubt that the shape of the graph reflects the normal seasonal variation in quantity 

 of standing crop fairly closely. It will be seen that up to the end of November the 

 increase over minimal winter values is but slight. From then until the mid-January 

 maximum the main increase is rapid, followed by gradual falling ofl^ through February 



Table 5. Intermediate Region. Seasonal variation in relative abundance. Individual 

 categories. Mean percentages and frequency of occurrence at mean dates 



