CAUSES OF CLIMATAL CHANGE. 



DEDICATED TO 

 DR. T. STERRY HUNT, F.R.S., 



WHOSE WORK IN 

 THE CHEMICAL AND COSMICAL RELATIONS OF GEOLOGY 



IS BEYOND ALL PRAISE, 

 AND IS DESTINED TO COMMAND 



IN THE FUTURE 

 EVEN GREATER ACCEPTANCE THAN IN THE PAST. 



