THIS ESSAy 



IN THE STUDY OP NATURAL PHENOMENA 



WRITTEN IN SUMMER 



WAS BY PERMISSION INSCRIBED 



TO 



THE MARQUESS OF SALISBURY, K.G. 



WITH PLEASANT REMEMBRANCE AND PROPOUND RESPECT 



IT IS NOW 



IN COMPLIANCE WITH A SAD BUT GRACIOUS SUGGESTION 



DEDICATED TO HIS MEMORY 



WMer, 1903. 



