336 JOURNAL, BOMBAY NATURAL HISTORY SOCIETY, Vol. XV II. 



From these tables we may easily collect how variable are the condi- 

 tions for the sexual processes of the plant-life. Of all the provinces of 

 India the vast plain of Sind is the driest, and, taken as a whole, the 

 hottest. Where the waters of the Indus do not exercise thtir beneficial 

 influence upon the vegetation, we find only an arid, sandy and stony 



